167165531 has 4 divisors (see below), whose sum is σ = 180024432. Its totient is φ = 154306632.

The previous prime is 167165527. The next prime is 167165549. The reversal of 167165531 is 135561761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135561761 = 643 ⋅210827.

It is a cyclic number.

It is not a de Polignac number, because 167165531 - 2² = 167165527 is a prime.

It is a super-2 number, since 2×167165531² = 55888629509023922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 167165491 and 167165500.

It is not an unprimeable number, because it can be changed into a prime (167165521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6429431 + ... + 6429456.

It is an arithmetic number, because the mean of its divisors is an integer number (45006108).

Almost surely, 2^167165531 is an apocalyptic number.

167165531 is a deficient number, since it is larger than the sum of its proper divisors (12858901).

167165531 is a wasteful number, since it uses less digits than its factorization.

167165531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12858900.

The product of its digits is 18900, while the sum is 35.

The square root of 167165531 is about 12929.2509837190. The cubic root of 167165531 is about 550.8697324794.

The spelling of 167165531 in words is "one hundred sixty-seven million, one hundred sixty-five thousand, five hundred thirty-one".