164514257 has 4 divisors (see below), whose sum is σ = 164583936. Its totient is φ = 164444580.

The previous prime is 164514227. The next prime is 164514269. The reversal of 164514257 is 752415461.

164514257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164514257 - 2¹² = 164510161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164514227) 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, 31169 + ... + 36062.

It is an arithmetic number, because the mean of its divisors is an integer number (41145984).

Almost surely, 2^164514257 is an apocalyptic number.

It is an amenable number.

164514257 is a deficient number, since it is larger than the sum of its proper divisors (69679).

164514257 is an equidigital number, since it uses as much as digits as its factorization.

164514257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69678.

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

The square root of 164514257 is about 12826.3111220647. The cubic root of 164514257 is about 547.9419027066.

The spelling of 164514257 in words is "one hundred sixty-four million, five hundred fourteen thousand, two hundred fifty-seven".