631455113 has 2 divisors, whose sum is σ = 631455114. Its totient is φ = 631455112.

The previous prime is 631455109. The next prime is 631455127. The reversal of 631455113 is 311554136.

631455113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533286649 + 98168464 = 23093^2 + 9908^2 .

It is a cyclic number.

It is not a de Polignac number, because 631455113 - 2² = 631455109 is a prime.

It is not a weakly prime, because it can be changed into another prime (631455163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315727556 + 315727557.

It is an arithmetic number, because the mean of its divisors is an integer number (315727557).

Almost surely, 2^631455113 is an apocalyptic number.

It is an amenable number.

631455113 is a deficient number, since it is larger than the sum of its proper divisors (1).

631455113 is an equidigital number, since it uses as much as digits as its factorization.

631455113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 631455113 is about 25128.7706225354. The cubic root of 631455113 is about 857.9213875773.

The spelling of 631455113 in words is "six hundred thirty-one million, four hundred fifty-five thousand, one hundred thirteen".