451116923 has 2 divisors, whose sum is σ = 451116924. Its totient is φ = 451116922.

The previous prime is 451116907. The next prime is 451116949. The reversal of 451116923 is 329611154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451116923 - 2⁴ = 451116907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 451116923.

It is not a weakly prime, because it can be changed into another prime (451116023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225558461 + 225558462.

It is an arithmetic number, because the mean of its divisors is an integer number (225558462).

Almost surely, 2^451116923 is an apocalyptic number.

451116923 is a deficient number, since it is larger than the sum of its proper divisors (1).

451116923 is an equidigital number, since it uses as much as digits as its factorization.

451116923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 451116923 is about 21239.5132477183. The cubic root of 451116923 is about 766.9429149629.

The spelling of 451116923 in words is "four hundred fifty-one million, one hundred sixteen thousand, nine hundred twenty-three".