161012575 has 12 divisors (see below), whose sum is σ = 199839640. Its totient is φ = 128691360.

The previous prime is 161012563. The next prime is 161012603. The reversal of 161012575 is 575210161.

It is not a de Polignac number, because 161012575 - 2¹⁷ = 160881503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33472 + ... + 37978.

Almost surely, 2^161012575 is an apocalyptic number.

161012575 is a deficient number, since it is larger than the sum of its proper divisors (38827065).

161012575 is a wasteful number, since it uses less digits than its factorization.

161012575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946 (or 5941 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 161012575 is about 12689.0730551920. The cubic root of 161012575 is about 544.0263456369.

The spelling of 161012575 in words is "one hundred sixty-one million, twelve thousand, five hundred seventy-five".