164654923 has 2 divisors, whose sum is σ = 164654924. Its totient is φ = 164654922.

The previous prime is 164654879. The next prime is 164654927. The reversal of 164654923 is 329456461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164654923 - 2²¹ = 162557771 is a prime.

It is a super-2 number, since 2×164654923² = 54222487336271858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164654927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82327461 + 82327462.

It is an arithmetic number, because the mean of its divisors is an integer number (82327462).

Almost surely, 2^164654923 is an apocalyptic number.

164654923 is a deficient number, since it is larger than the sum of its proper divisors (1).

164654923 is an equidigital number, since it uses as much as digits as its factorization.

164654923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 164654923 is about 12831.7934444099. The cubic root of 164654923 is about 548.0980286652.

The spelling of 164654923 in words is "one hundred sixty-four million, six hundred fifty-four thousand, nine hundred twenty-three".