164285457 has 16 divisors (see below), whose sum is σ = 263516160. Its totient is φ = 88936272.

The previous prime is 164285453. The next prime is 164285491. The reversal of 164285457 is 754582461.

It is a happy number.

It is not a de Polignac number, because 164285457 - 2² = 164285453 is a prime.

It is a super-2 number, since 2×164285457² = 53979422763397698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164285453) 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, 205473 + ... + 206270.

It is an arithmetic number, because the mean of its divisors is an integer number (16469760).

Almost surely, 2^164285457 is an apocalyptic number.

It is an amenable number.

164285457 is a deficient number, since it is larger than the sum of its proper divisors (99230703).

164285457 is a wasteful number, since it uses less digits than its factorization.

164285457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411772.

The product of its digits is 268800, while the sum is 42.

The square root of 164285457 is about 12817.3888526486. The cubic root of 164285457 is about 547.6877661269.

The spelling of 164285457 in words is "one hundred sixty-four million, two hundred eighty-five thousand, four hundred fifty-seven".