164525423 has 2 divisors, whose sum is σ = 164525424. Its totient is φ = 164525422.

The previous prime is 164525419. The next prime is 164525443. The reversal of 164525423 is 324525461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164525423 - 2² = 164525419 is a prime.

It is a super-2 number, since 2×164525423² = 54137229626657858, which contains 22 as substring.

It is equal to p_9213890 and since 164525423 and 9213890 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164525423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164525443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82262711 + 82262712.

It is an arithmetic number, because the mean of its divisors is an integer number (82262712).

Almost surely, 2^164525423 is an apocalyptic number.

164525423 is a deficient number, since it is larger than the sum of its proper divisors (1).

164525423 is an equidigital number, since it uses as much as digits as its factorization.

164525423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 32.

The square root of 164525423 is about 12826.7463918174. The cubic root of 164525423 is about 547.9542991618.

The spelling of 164525423 in words is "one hundred sixty-four million, five hundred twenty-five thousand, four hundred twenty-three".