356136561 has 32 divisors (see below), whose sum is σ = 578403840. Its totient is φ = 214779600.

The previous prime is 356136541. The next prime is 356136601. The reversal of 356136561 is 165631653.

356136561 is a `hidden beast` number, since 3 + 5 + 61 + 36 + 561 = 666.

It is not a de Polignac number, because 356136561 - 2²¹ = 354039409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (356136511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59826 + ... + 65508.

It is an arithmetic number, because the mean of its divisors is an integer number (18075120).

Almost surely, 2^356136561 is an apocalyptic number.

It is an amenable number.

356136561 is a deficient number, since it is larger than the sum of its proper divisors (222267279).

356136561 is a wasteful number, since it uses less digits than its factorization.

356136561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914 (or 5908 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 356136561 is about 18871.5807763950. The cubic root of 356136561 is about 708.8247176345.

The spelling of 356136561 in words is "three hundred fifty-six million, one hundred thirty-six thousand, five hundred sixty-one".