451042979 has 2 divisors, whose sum is σ = 451042980. Its totient is φ = 451042978.

The previous prime is 451042961. The next prime is 451043029. The reversal of 451042979 is 979240154.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451042979 is a prime.

It is not a weakly prime, because it can be changed into another prime (451042909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225521489 + 225521490.

It is an arithmetic number, because the mean of its divisors is an integer number (225521490).

Almost surely, 2^451042979 is an apocalyptic number.

451042979 is a deficient number, since it is larger than the sum of its proper divisors (1).

451042979 is an equidigital number, since it uses as much as digits as its factorization.

451042979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 451042979 is about 21237.7724585230. The cubic root of 451042979 is about 766.9010086612.

The spelling of 451042979 in words is "four hundred fifty-one million, forty-two thousand, nine hundred seventy-nine".