451905023 has 2 divisors, whose sum is σ = 451905024. Its totient is φ = 451905022.

The previous prime is 451904983. The next prime is 451905031. The reversal of 451905023 is 320509154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451905023 - 2¹² = 451900927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451905523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225952511 + 225952512.

It is an arithmetic number, because the mean of its divisors is an integer number (225952512).

Almost surely, 2^451905023 is an apocalyptic number.

451905023 is a deficient number, since it is larger than the sum of its proper divisors (1).

451905023 is an equidigital number, since it uses as much as digits as its factorization.

451905023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 451905023 is about 21258.0578369709. The cubic root of 451905023 is about 767.3892708438.

The spelling of 451905023 in words is "four hundred fifty-one million, nine hundred five thousand, twenty-three".