632447131 has 2 divisors, whose sum is σ = 632447132. Its totient is φ = 632447130.

The previous prime is 632447119. The next prime is 632447149. The reversal of 632447131 is 131744236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632447131 - 2⁷ = 632447003 is a prime.

It is a super-2 number, since 2×632447131² = 799978747020262322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 632447093 and 632447102.

It is not a weakly prime, because it can be changed into another prime (632447191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316223565 + 316223566.

It is an arithmetic number, because the mean of its divisors is an integer number (316223566).

Almost surely, 2^632447131 is an apocalyptic number.

632447131 is a deficient number, since it is larger than the sum of its proper divisors (1).

632447131 is an equidigital number, since it uses as much as digits as its factorization.

632447131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 632447131 is about 25148.5015656997. The cubic root of 632447131 is about 858.3704182634.

The spelling of 632447131 in words is "six hundred thirty-two million, four hundred forty-seven thousand, one hundred thirty-one".