167485257 has 6 divisors (see below), whose sum is σ = 241923162. Its totient is φ = 111656832.

The previous prime is 167485231. The next prime is 167485289. The reversal of 167485257 is 752584761.

167485257 is a `hidden beast` number, since 167 + 485 + 2 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 167340096 + 145161 = 12936^2 + 381^2 .

It is not a de Polignac number, because 167485257 - 2¹¹ = 167483209 is a prime.

It is a super-2 number, since 2×167485257² = 56102622624712098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (167485457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9304728 + ... + 9304745.

It is an arithmetic number, because the mean of its divisors is an integer number (40320527).

Almost surely, 2^167485257 is an apocalyptic number.

It is an amenable number.

167485257 is a deficient number, since it is larger than the sum of its proper divisors (74437905).

167485257 is a wasteful number, since it uses less digits than its factorization.

167485257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609479 (or 18609476 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 167485257 is about 12941.6095212303. The cubic root of 167485257 is about 551.2207123441.

The spelling of 167485257 in words is "one hundred sixty-seven million, four hundred eighty-five thousand, two hundred fifty-seven".