629589161 has 2 divisors, whose sum is σ = 629589162. Its totient is φ = 629589160.

The previous prime is 629589127. The next prime is 629589167. The reversal of 629589161 is 161985926.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514155625 + 115433536 = 22675^2 + 10744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-629589161 is a prime.

It is not a weakly prime, because it can be changed into another prime (629589167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314794580 + 314794581.

It is an arithmetic number, because the mean of its divisors is an integer number (314794581).

Almost surely, 2^629589161 is an apocalyptic number.

It is an amenable number.

629589161 is a deficient number, since it is larger than the sum of its proper divisors (1).

629589161 is an equidigital number, since it uses as much as digits as its factorization.

629589161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 47.

The square root of 629589161 is about 25091.6153525436. The cubic root of 629589161 is about 857.0755002930.

The spelling of 629589161 in words is "six hundred twenty-nine million, five hundred eighty-nine thousand, one hundred sixty-one".