631336099 has 2 divisors, whose sum is σ = 631336100. Its totient is φ = 631336098.

The previous prime is 631336091. The next prime is 631336117. The reversal of 631336099 is 990633136.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631336099 - 2³ = 631336091 is a prime.

It is not a weakly prime, because it can be changed into another prime (631336091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315668049 + 315668050.

It is an arithmetic number, because the mean of its divisors is an integer number (315668050).

Almost surely, 2^631336099 is an apocalyptic number.

631336099 is a deficient number, since it is larger than the sum of its proper divisors (1).

631336099 is an equidigital number, since it uses as much as digits as its factorization.

631336099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 631336099 is about 25126.4024285213. The cubic root of 631336099 is about 857.8674850542.

The spelling of 631336099 in words is "six hundred thirty-one million, three hundred thirty-six thousand, ninety-nine".