185001057 has 16 divisors (see below), whose sum is σ = 275232000. Its totient is φ = 122813712.

The previous prime is 185001041. The next prime is 185001059. The reversal of 185001057 is 750100581.

It is not a de Polignac number, because 185001057 - 2⁴ = 185001041 is a prime.

It is a super-2 number, since 2×185001057² = 68450782182234498, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 185001057.

It is not an unprimeable number, because it can be changed into a prime (185001059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7882 + ... + 20787.

It is an arithmetic number, because the mean of its divisors is an integer number (17202000).

Almost surely, 2^185001057 is an apocalyptic number.

It is an amenable number.

185001057 is a deficient number, since it is larger than the sum of its proper divisors (90230943).

185001057 is a wasteful number, since it uses less digits than its factorization.

185001057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28917 (or 28911 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 185001057 is about 13601.5093647727. The cubic root of 185001057 is about 569.8030067188.

The spelling of 185001057 in words is "one hundred eighty-five million, one thousand, fifty-seven".