161560315 has 32 divisors (see below), whose sum is σ = 230808960. Its totient is φ = 106251264.

The previous prime is 161560297. The next prime is 161560327. The reversal of 161560315 is 513065161.

It is not a de Polignac number, because 161560315 - 2⁵ = 161560283 is a prime.

It is a super-2 number, since 2×161560315² = 52203470765798450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93681 + ... + 95389.

It is an arithmetic number, because the mean of its divisors is an integer number (7212780).

Almost surely, 2^161560315 is an apocalyptic number.

161560315 is a deficient number, since it is larger than the sum of its proper divisors (69248645).

161560315 is a wasteful number, since it uses less digits than its factorization.

161560315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 161560315 is about 12710.6378675502. The cubic root of 161560315 is about 544.6425453924.

The spelling of 161560315 in words is "one hundred sixty-one million, five hundred sixty thousand, three hundred fifteen".