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135469507 = 647209381
BaseRepresentation
bin10000001001100…
…01100111000011
3100102220120020011
420010301213003
5234140011012
621235325351
73233320555
oct1004614703
9312816204
10135469507
116a518278
1239450857
13220b2194
1413dc54d5
15bd5e1a7
hex81319c3

135469507 has 4 divisors (see below), whose sum is σ = 135679536. Its totient is φ = 135259480.

The previous prime is 135469489. The next prime is 135469513. The reversal of 135469507 is 705964531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705964531 = 739670747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135469507 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135469507.

It is not an unprimeable number, because it can be changed into a prime (135469547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104044 + ... + 105337.

It is an arithmetic number, because the mean of its divisors is an integer number (33919884).

Almost surely, 2135469507 is an apocalyptic number.

135469507 is a deficient number, since it is larger than the sum of its proper divisors (210029).

135469507 is an equidigital number, since it uses as much as digits as its factorization.

135469507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210028.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 135469507 is about 11639.1368666237. The cubic root of 135469507 is about 513.5867964110.

The spelling of 135469507 in words is "one hundred thirty-five million, four hundred sixty-nine thousand, five hundred seven".

Divisors: 1 647 209381 135469507