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135305153 = 281481513
BaseRepresentation
bin10000001000010…
…01011111000001
3100102121012202222
420010021133001
5234114231103
621232020425
73232034444
oct1004113701
9312535688
10135305153
116a415845
1239391715
1322055429
1413d8165b
15bd2a638
hex81097c1

135305153 has 4 divisors (see below), whose sum is σ = 135786948. Its totient is φ = 134823360.

The previous prime is 135305141. The next prime is 135305161. The reversal of 135305153 is 351503531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351503531 = 2711297061.

It can be written as a sum of positive squares in 2 ways, for example, as 97752769 + 37552384 = 9887^2 + 6128^2 .

It is a cyclic number.

It is not a de Polignac number, because 135305153 - 26 = 135305089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135395153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240476 + ... + 241037.

It is an arithmetic number, because the mean of its divisors is an integer number (33946737).

Almost surely, 2135305153 is an apocalyptic number.

It is an amenable number.

135305153 is a deficient number, since it is larger than the sum of its proper divisors (481795).

135305153 is an equidigital number, since it uses as much as digits as its factorization.

135305153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481794.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 135305153 is about 11632.0743206016. The cubic root of 135305153 is about 513.3790148343.

Adding to 135305153 its reverse (351503531), we get a palindrome (486808684).

The spelling of 135305153 in words is "one hundred thirty-five million, three hundred five thousand, one hundred fifty-three".

Divisors: 1 281 481513 135305153