164323251 has 12 divisors (see below), whose sum is σ = 245540880. Its totient is φ = 105771120.

The previous prime is 164323231. The next prime is 164323273. The reversal of 164323251 is 152323461.

It is not a de Polignac number, because 164323251 - 2⁷ = 164323123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164323231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314535 + ... + 315056.

It is an arithmetic number, because the mean of its divisors is an integer number (20461740).

Almost surely, 2^164323251 is an apocalyptic number.

164323251 is a deficient number, since it is larger than the sum of its proper divisors (81217629).

164323251 is a wasteful number, since it uses less digits than its factorization.

164323251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629626 (or 629623 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 164323251 is about 12818.8630931140. The cubic root of 164323251 is about 547.7297615754.

It can be divided in two parts, 16432 and 3251, that added together give a 9-th power (19683 = 3⁹).

The spelling of 164323251 in words is "one hundred sixty-four million, three hundred twenty-three thousand, two hundred fifty-one".