164290557 has 8 divisors (see below), whose sum is σ = 219114720. Its totient is φ = 109496720.

The previous prime is 164290547. The next prime is 164290571. The reversal of 164290557 is 755092461.

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

It is a cyclic number.

It is not a de Polignac number, because 164290557 - 2⁷ = 164290429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164290517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13207 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (27389340).

Almost surely, 2^164290557 is an apocalyptic number.

It is an amenable number.

164290557 is a deficient number, since it is larger than the sum of its proper divisors (54824163).

164290557 is an equidigital number, since it uses as much as digits as its factorization.

164290557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15163.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 164290557 is about 12817.5877995823. The cubic root of 164290557 is about 547.6934334549.

The spelling of 164290557 in words is "one hundred sixty-four million, two hundred ninety thousand, five hundred fifty-seven".