164634629 has 2 divisors, whose sum is σ = 164634630. Its totient is φ = 164634628.

The previous prime is 164634623. The next prime is 164634641. The reversal of 164634629 is 926436461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135722500 + 28912129 = 11650^2 + 5377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164634629 is a prime.

It is a super-2 number, since 2×164634629² = 54209122131935282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164634623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82317314 + 82317315.

It is an arithmetic number, because the mean of its divisors is an integer number (82317315).

Almost surely, 2^164634629 is an apocalyptic number.

It is an amenable number.

164634629 is a deficient number, since it is larger than the sum of its proper divisors (1).

164634629 is an equidigital number, since it uses as much as digits as its factorization.

164634629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 164634629 is about 12831.0026498322. The cubic root of 164634629 is about 548.0755097345.

The spelling of 164634629 in words is "one hundred sixty-four million, six hundred thirty-four thousand, six hundred twenty-nine".