164216629 has 2 divisors, whose sum is σ = 164216630. Its totient is φ = 164216628.

The previous prime is 164216599. The next prime is 164216653. The reversal of 164216629 is 926612461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113422500 + 50794129 = 10650^2 + 7127^2 .

It is a cyclic number.

It is not a de Polignac number, because 164216629 - 2⁵ = 164216597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164216669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82108314 + 82108315.

It is an arithmetic number, because the mean of its divisors is an integer number (82108315).

Almost surely, 2^164216629 is an apocalyptic number.

It is an amenable number.

164216629 is a deficient number, since it is larger than the sum of its proper divisors (1).

164216629 is an equidigital number, since it uses as much as digits as its factorization.

164216629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 164216629 is about 12814.7036251331. The cubic root of 164216629 is about 547.6112701712.

The spelling of 164216629 in words is "one hundred sixty-four million, two hundred sixteen thousand, six hundred twenty-nine".