454031857 has 2 divisors, whose sum is σ = 454031858. Its totient is φ = 454031856.

The previous prime is 454031821. The next prime is 454031861. The reversal of 454031857 is 758130454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452157696 + 1874161 = 21264^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 454031857 - 2⁷ = 454031729 is a prime.

It is a super-2 number, since 2×454031857² = 412289854341736898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (454031807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227015928 + 227015929.

It is an arithmetic number, because the mean of its divisors is an integer number (227015929).

Almost surely, 2^454031857 is an apocalyptic number.

It is an amenable number.

454031857 is a deficient number, since it is larger than the sum of its proper divisors (1).

454031857 is an equidigital number, since it uses as much as digits as its factorization.

454031857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 454031857 is about 21308.0233010948. The cubic root of 454031857 is about 768.5912607488.

The spelling of 454031857 in words is "four hundred fifty-four million, thirty-one thousand, eight hundred fifty-seven".