164526623 has 2 divisors, whose sum is σ = 164526624. Its totient is φ = 164526622.

The previous prime is 164526611. The next prime is 164526631. The reversal of 164526623 is 326625461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164526623 - 2¹⁸ = 164264479 is a prime.

It is equal to p_9213947 and since 164526623 and 9213947 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164526673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82263311 + 82263312.

It is an arithmetic number, because the mean of its divisors is an integer number (82263312).

Almost surely, 2^164526623 is an apocalyptic number.

164526623 is a deficient number, since it is larger than the sum of its proper divisors (1).

164526623 is an equidigital number, since it uses as much as digits as its factorization.

164526623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 164526623 is about 12826.7931689881. The cubic root of 164526623 is about 547.9556313644.

The spelling of 164526623 in words is "one hundred sixty-four million, five hundred twenty-six thousand, six hundred twenty-three".