451955923 has 6 divisors (see below), whose sum is σ = 468078884. Its totient is φ = 436370424.

The previous prime is 451955899. The next prime is 451955939. The reversal of 451955923 is 329559154.

It is not a de Polignac number, because 451955923 - 2⁵ = 451955891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451955923.

It is not an unprimeable number, because it can be changed into a prime (451955993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267861 + ... + 269542.

Almost surely, 2^451955923 is an apocalyptic number.

451955923 is a deficient number, since it is larger than the sum of its proper divisors (16122961).

451955923 is an equidigital number, since it uses as much as digits as its factorization.

451955923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537461 (or 537432 counting only the distinct ones).

The product of its digits is 243000, while the sum is 43.

The square root of 451955923 is about 21259.2549963539. The cubic root of 451955923 is about 767.4180812100.

The spelling of 451955923 in words is "four hundred fifty-one million, nine hundred fifty-five thousand, nine hundred twenty-three".