164567457 has 20 divisors (see below), whose sum is σ = 246288240. Its totient is φ = 109509624.

The previous prime is 164567449. The next prime is 164567537. The reversal of 164567457 is 754765461.

164567457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164567457 - 2³ = 164567449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164567357) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51838 + ... + 54920.

It is an arithmetic number, because the mean of its divisors is an integer number (12314412).

Almost surely, 2^164567457 is an apocalyptic number.

It is an amenable number.

164567457 is a deficient number, since it is larger than the sum of its proper divisors (81720783).

164567457 is an equidigital number, since it uses as much as digits as its factorization.

164567457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754 (or 3745 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 164567457 is about 12828.3848164919. The cubic root of 164567457 is about 548.0009601365. Note that the first 3 decimals are identical.

The spelling of 164567457 in words is "one hundred sixty-four million, five hundred sixty-seven thousand, four hundred fifty-seven".