164125457 has 4 divisors (see below), whose sum is σ = 167617536. Its totient is φ = 160633380.

The previous prime is 164125427. The next prime is 164125469. The reversal of 164125457 is 754521461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164125457 - 2⁸ = 164125201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164125427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745969 + ... + 1746062.

It is an arithmetic number, because the mean of its divisors is an integer number (41904384).

Almost surely, 2^164125457 is an apocalyptic number.

It is an amenable number.

164125457 is a deficient number, since it is larger than the sum of its proper divisors (3492079).

164125457 is an equidigital number, since it uses as much as digits as its factorization.

164125457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492078.

The product of its digits is 33600, while the sum is 35.

The square root of 164125457 is about 12811.1458113629. The cubic root of 164125457 is about 547.5099080100.

The spelling of 164125457 in words is "one hundred sixty-four million, one hundred twenty-five thousand, four hundred fifty-seven".