459891631 has 2 divisors, whose sum is σ = 459891632. Its totient is φ = 459891630.

The previous prime is 459891583. The next prime is 459891643. The reversal of 459891631 is 136198954.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 459891631 - 2⁹ = 459891119 is a prime.

It is a super-2 number, since 2×459891631² = 423000624527680322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (459891661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229945815 + 229945816.

It is an arithmetic number, because the mean of its divisors is an integer number (229945816).

Almost surely, 2^459891631 is an apocalyptic number.

459891631 is a deficient number, since it is larger than the sum of its proper divisors (1).

459891631 is an equidigital number, since it uses as much as digits as its factorization.

459891631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 46.

The square root of 459891631 is about 21445.0840753773. The cubic root of 459891631 is about 771.8836387347.

The spelling of 459891631 in words is "four hundred fifty-nine million, eight hundred ninety-one thousand, six hundred thirty-one".