629193161 has 2 divisors, whose sum is σ = 629193162. Its totient is φ = 629193160.

The previous prime is 629193139. The next prime is 629193167. The reversal of 629193161 is 161391926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322417936 + 306775225 = 17956^2 + 17515^2 .

It is a cyclic number.

It is not a de Polignac number, because 629193161 - 2²⁶ = 562084297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (629193167) 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, 314596580 + 314596581.

It is an arithmetic number, because the mean of its divisors is an integer number (314596581).

Almost surely, 2^629193161 is an apocalyptic number.

It is an amenable number.

629193161 is a deficient number, since it is larger than the sum of its proper divisors (1).

629193161 is an equidigital number, since it uses as much as digits as its factorization.

629193161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 38.

The square root of 629193161 is about 25083.7230290880. The cubic root of 629193161 is about 856.8957676974.

The spelling of 629193161 in words is "six hundred twenty-nine million, one hundred ninety-three thousand, one hundred sixty-one".