164365427 has 2 divisors, whose sum is σ = 164365428. Its totient is φ = 164365426.

The previous prime is 164365403. The next prime is 164365457. The reversal of 164365427 is 724563461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164365427 - 2⁶ = 164365363 is a prime.

It is not a weakly prime, because it can be changed into another prime (164365457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82182713 + 82182714.

It is an arithmetic number, because the mean of its divisors is an integer number (82182714).

Almost surely, 2^164365427 is an apocalyptic number.

164365427 is a deficient number, since it is larger than the sum of its proper divisors (1).

164365427 is an equidigital number, since it uses as much as digits as its factorization.

164365427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 164365427 is about 12820.5080632555. The cubic root of 164365427 is about 547.7766185562.

The spelling of 164365427 in words is "one hundred sixty-four million, three hundred sixty-five thousand, four hundred twenty-seven".