315221314742 has 32 divisors (see below), whose sum is σ = 498843850752. Its totient is φ = 149095435104.

The previous prime is 315221314739. The next prime is 315221314763. The reversal of 315221314742 is 247413122513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3542723 + ... + 3630609.

It is an arithmetic number, because the mean of its divisors is an integer number (15588870336).

Almost surely, 2^315221314742 is an apocalyptic number.

315221314742 is a deficient number, since it is larger than the sum of its proper divisors (183622536010).

315221314742 is a wasteful number, since it uses less digits than its factorization.

315221314742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88772.

The product of its digits is 40320, while the sum is 35.

The spelling of 315221314742 in words is "three hundred fifteen billion, two hundred twenty-one million, three hundred fourteen thousand, seven hundred forty-two".