315229451 has 2 divisors, whose sum is σ = 315229452. Its totient is φ = 315229450.

The previous prime is 315229441. The next prime is 315229459. The reversal of 315229451 is 154922513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315229451 - 2¹⁸ = 314967307 is a prime.

It is a super-2 number, since 2×315229451² = 198739213555522802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315229459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157614725 + 157614726.

It is an arithmetic number, because the mean of its divisors is an integer number (157614726).

Almost surely, 2^315229451 is an apocalyptic number.

315229451 is a deficient number, since it is larger than the sum of its proper divisors (1).

315229451 is an equidigital number, since it uses as much as digits as its factorization.

315229451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 315229451 is about 17754.7022222283. The cubic root of 315229451 is about 680.5743784551.

The spelling of 315229451 in words is "three hundred fifteen million, two hundred twenty-nine thousand, four hundred fifty-one".