315874729 has 2 divisors, whose sum is σ = 315874730. Its totient is φ = 315874728.

The previous prime is 315874703. The next prime is 315874751. The reversal of 315874729 is 927478513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294465600 + 21409129 = 17160^2 + 4627^2 .

It is a cyclic number.

It is not a de Polignac number, because 315874729 - 2¹⁵ = 315841961 is a prime.

It is not a weakly prime, because it can be changed into another prime (315874759) 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, 157937364 + 157937365.

It is an arithmetic number, because the mean of its divisors is an integer number (157937365).

Almost surely, 2^315874729 is an apocalyptic number.

It is an amenable number.

315874729 is a deficient number, since it is larger than the sum of its proper divisors (1).

315874729 is an equidigital number, since it uses as much as digits as its factorization.

315874729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 315874729 is about 17772.8649631960. The cubic root of 315874729 is about 681.0384429197.

The spelling of 315874729 in words is "three hundred fifteen million, eight hundred seventy-four thousand, seven hundred twenty-nine".