164345933 has 2 divisors, whose sum is σ = 164345934. Its totient is φ = 164345932.

The previous prime is 164345899. The next prime is 164345947. The reversal of 164345933 is 339543461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159314884 + 5031049 = 12622^2 + 2243^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164345933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164345963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82172966 + 82172967.

It is an arithmetic number, because the mean of its divisors is an integer number (82172967).

Almost surely, 2^164345933 is an apocalyptic number.

It is an amenable number.

164345933 is a deficient number, since it is larger than the sum of its proper divisors (1).

164345933 is an equidigital number, since it uses as much as digits as its factorization.

164345933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 164345933 is about 12819.7477744299. The cubic root of 164345933 is about 547.7549619752.

The spelling of 164345933 in words is "one hundred sixty-four million, three hundred forty-five thousand, nine hundred thirty-three".