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135654451 = 621121841
BaseRepresentation
bin10000001010111…
…10110000110011
3100110020221220221
420011132300303
5234211420301
621243313511
73235021012
oct1005366063
9313227827
10135654451
116a634219
123951b897
132214840a
1414032a79
15bd98da1
hex815ec33

135654451 has 4 divisors (see below), whose sum is σ = 135682504. Its totient is φ = 135626400.

The previous prime is 135654377. The next prime is 135654461. The reversal of 135654451 is 154456531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135654451 is a prime.

It is a super-2 number, since 2×1356544512 = 36804260152222802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135654461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4710 + ... + 17131.

It is an arithmetic number, because the mean of its divisors is an integer number (33920626).

Almost surely, 2135654451 is an apocalyptic number.

135654451 is a deficient number, since it is larger than the sum of its proper divisors (28053).

135654451 is an equidigital number, since it uses as much as digits as its factorization.

135654451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28052.

The product of its digits is 36000, while the sum is 34.

The square root of 135654451 is about 11647.0790758885. The cubic root of 135654451 is about 513.8204076658.

The spelling of 135654451 in words is "one hundred thirty-five million, six hundred fifty-four thousand, four hundred fifty-one".

Divisors: 1 6211 21841 135654451