454906381 has 2 divisors, whose sum is σ = 454906382. Its totient is φ = 454906380.

The previous prime is 454906339. The next prime is 454906399. The reversal of 454906381 is 183609454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364466281 + 90440100 = 19091^2 + 9510^2 .

It is a cyclic number.

It is not a de Polignac number, because 454906381 - 2²⁷ = 320688653 is a prime.

It is a super-2 number, since 2×454906381² = 413879630949034322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454906321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227453190 + 227453191.

It is an arithmetic number, because the mean of its divisors is an integer number (227453191).

Almost surely, 2^454906381 is an apocalyptic number.

It is an amenable number.

454906381 is a deficient number, since it is larger than the sum of its proper divisors (1).

454906381 is an equidigital number, since it uses as much as digits as its factorization.

454906381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 454906381 is about 21328.5344316012. The cubic root of 454906381 is about 769.0844129394.

The spelling of 454906381 in words is "four hundred fifty-four million, nine hundred six thousand, three hundred eighty-one".