164917457 has 8 divisors (see below), whose sum is σ = 169199520. Its totient is φ = 160647840.

The previous prime is 164917421. The next prime is 164917463. The reversal of 164917457 is 754719461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164917457 - 2⁸ = 164917201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164917057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27578 + ... + 33020.

It is an arithmetic number, because the mean of its divisors is an integer number (21149940).

Almost surely, 2^164917457 is an apocalyptic number.

It is an amenable number.

164917457 is a deficient number, since it is larger than the sum of its proper divisors (4282063).

164917457 is an equidigital number, since it uses as much as digits as its factorization.

164917457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223.

The product of its digits is 211680, while the sum is 44.

The square root of 164917457 is about 12842.0191948151. The cubic root of 164917457 is about 548.3891788992.

The spelling of 164917457 in words is "one hundred sixty-four million, nine hundred seventeen thousand, four hundred fifty-seven".