630202117 has 2 divisors, whose sum is σ = 630202118. Its totient is φ = 630202116.

The previous prime is 630202091. The next prime is 630202123. The reversal of 630202117 is 711202036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544102276 + 86099841 = 23326^2 + 9279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630202117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630202217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315101058 + 315101059.

It is an arithmetic number, because the mean of its divisors is an integer number (315101059).

Almost surely, 2^630202117 is an apocalyptic number.

It is an amenable number.

630202117 is a deficient number, since it is larger than the sum of its proper divisors (1).

630202117 is an equidigital number, since it uses as much as digits as its factorization.

630202117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 630202117 is about 25103.8267401606. The cubic root of 630202117 is about 857.3535541970.

The spelling of 630202117 in words is "six hundred thirty million, two hundred two thousand, one hundred seventeen".