164253497 has 2 divisors, whose sum is σ = 164253498. Its totient is φ = 164253496.

The previous prime is 164253451. The next prime is 164253527. The reversal of 164253497 is 794352461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95628841 + 68624656 = 9779^2 + 8284^2 .

It is a cyclic number.

It is not a de Polignac number, because 164253497 - 2⁸ = 164253241 is a prime.

It is a super-2 number, since 2×164253497² = 53958422553458018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164253437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82126748 + 82126749.

It is an arithmetic number, because the mean of its divisors is an integer number (82126749).

Almost surely, 2^164253497 is an apocalyptic number.

It is an amenable number.

164253497 is a deficient number, since it is larger than the sum of its proper divisors (1).

164253497 is an equidigital number, since it uses as much as digits as its factorization.

164253497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 164253497 is about 12816.1420482140. The cubic root of 164253497 is about 547.6522482007.

The spelling of 164253497 in words is "one hundred sixty-four million, two hundred fifty-three thousand, four hundred ninety-seven".