631882001 has 2 divisors, whose sum is σ = 631882002. Its totient is φ = 631882000.

The previous prime is 631881977. The next prime is 631882019. The reversal of 631882001 is 100288136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408080401 + 223801600 = 20201^2 + 14960^2 .

It is a cyclic number.

It is not a de Polignac number, because 631882001 - 2⁶ = 631881937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (631882081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315941000 + 315941001.

It is an arithmetic number, because the mean of its divisors is an integer number (315941001).

Almost surely, 2^631882001 is an apocalyptic number.

It is an amenable number.

631882001 is a deficient number, since it is larger than the sum of its proper divisors (1).

631882001 is an equidigital number, since it uses as much as digits as its factorization.

631882001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 631882001 is about 25137.2631962988. The cubic root of 631882001 is about 858.1146733384.

The spelling of 631882001 in words is "six hundred thirty-one million, eight hundred eighty-two thousand, one".