42631499 has 2 divisors, whose sum is σ = 42631500. Its totient is φ = 42631498.

The previous prime is 42631483. The next prime is 42631507. The reversal of 42631499 is 99413624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42631499 - 2⁴ = 42631483 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42631409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315749 + 21315750.

It is an arithmetic number, because the mean of its divisors is an integer number (21315750).

Almost surely, 2^42631499 is an apocalyptic number.

42631499 is a deficient number, since it is larger than the sum of its proper divisors (1).

42631499 is an equidigital number, since it uses as much as digits as its factorization.

42631499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 42631499 is about 6529.2801287738. The cubic root of 42631499 is about 349.3361539221.

The spelling of 42631499 in words is "forty-two million, six hundred thirty-one thousand, four hundred ninety-nine".