454638931 has 2 divisors, whose sum is σ = 454638932. Its totient is φ = 454638930.

The previous prime is 454638913. The next prime is 454638971. The reversal of 454638931 is 139836454.

Together with previous prime (454638913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454638931 - 2⁹ = 454638419 is a prime.

It is a super-2 number, since 2×454638931² = 413393115161645522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (454638971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227319465 + 227319466.

It is an arithmetic number, because the mean of its divisors is an integer number (227319466).

Almost surely, 2^454638931 is an apocalyptic number.

454638931 is a deficient number, since it is larger than the sum of its proper divisors (1).

454638931 is an equidigital number, since it uses as much as digits as its factorization.

454638931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 454638931 is about 21322.2637400441. The cubic root of 454638931 is about 768.9336625445.

The spelling of 454638931 in words is "four hundred fifty-four million, six hundred thirty-eight thousand, nine hundred thirty-one".