454720631 has 2 divisors, whose sum is σ = 454720632. Its totient is φ = 454720630.

The previous prime is 454720619. The next prime is 454720633. The reversal of 454720631 is 136027454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454720631 is a prime.

It is a super-2 number, since 2×454720631² = 413541704514076322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 454720633, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_24089810 and since 454720631 and 24089810 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454720633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227360315 + 227360316.

It is an arithmetic number, because the mean of its divisors is an integer number (227360316).

Almost surely, 2^454720631 is an apocalyptic number.

454720631 is a deficient number, since it is larger than the sum of its proper divisors (1).

454720631 is an equidigital number, since it uses as much as digits as its factorization.

454720631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 454720631 is about 21324.1794918351. The cubic root of 454720631 is about 768.9797196925.

The spelling of 454720631 in words is "four hundred fifty-four million, seven hundred twenty thousand, six hundred thirty-one".