164321929 has 2 divisors, whose sum is σ = 164321930. Its totient is φ = 164321928.

The previous prime is 164321923. The next prime is 164321939. The reversal of 164321929 is 929123461.

164321929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161925625 + 2396304 = 12725^2 + 1548^2 .

It is a cyclic number.

It is not a de Polignac number, because 164321929 - 2⁵ = 164321897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164321923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82160964 + 82160965.

It is an arithmetic number, because the mean of its divisors is an integer number (82160965).

Almost surely, 2^164321929 is an apocalyptic number.

It is an amenable number.

164321929 is a deficient number, since it is larger than the sum of its proper divisors (1).

164321929 is an equidigital number, since it uses as much as digits as its factorization.

164321929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 164321929 is about 12818.8115283750. The cubic root of 164321929 is about 547.7282927212.

The spelling of 164321929 in words is "one hundred sixty-four million, three hundred twenty-one thousand, nine hundred twenty-nine".