451157939 has 2 divisors, whose sum is σ = 451157940. Its totient is φ = 451157938.

The previous prime is 451157929. The next prime is 451157963. The reversal of 451157939 is 939751154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451157939 - 2²⁸ = 182722483 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 451157939.

It is not a weakly prime, because it can be changed into another prime (451157929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225578969 + 225578970.

It is an arithmetic number, because the mean of its divisors is an integer number (225578970).

Almost surely, 2^451157939 is an apocalyptic number.

451157939 is a deficient number, since it is larger than the sum of its proper divisors (1).

451157939 is an equidigital number, since it uses as much as digits as its factorization.

451157939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170100, while the sum is 44.

The square root of 451157939 is about 21240.4787846225. The cubic root of 451157939 is about 766.9661579965.

The spelling of 451157939 in words is "four hundred fifty-one million, one hundred fifty-seven thousand, nine hundred thirty-nine".