315650242 has 16 divisors (see below), whose sum is σ = 477819000. Its totient is φ = 156382720.

The previous prime is 315650221. The next prime is 315650263. The reversal of 315650242 is 242056513.

It is an interprime number because it is at equal distance from previous prime (315650221) and next prime (315650263).

It can be written as a sum of positive squares in 4 ways, for example, as 242393761 + 73256481 = 15569^2 + 8559^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315650242.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 150642 + ... + 152722.

Almost surely, 2^315650242 is an apocalyptic number.

315650242 is a deficient number, since it is larger than the sum of its proper divisors (162168758).

315650242 is a wasteful number, since it uses less digits than its factorization.

315650242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 315650242 is about 17766.5483986057. The cubic root of 315650242 is about 680.8770703938.

The spelling of 315650242 in words is "three hundred fifteen million, six hundred fifty thousand, two hundred forty-two".