315101242 has 16 divisors (see below), whose sum is σ = 493856640. Its totient is φ = 150500592.

The previous prime is 315101231. The next prime is 315101251. The reversal of 315101242 is 242101513.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34003 + ... + 42265.

It is an arithmetic number, because the mean of its divisors is an integer number (30866040).

Almost surely, 2^315101242 is an apocalyptic number.

315101242 is a deficient number, since it is larger than the sum of its proper divisors (178755398).

315101242 is a wasteful number, since it uses less digits than its factorization.

315101242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 315101242 is about 17751.0912903968. The cubic root of 315101242 is about 680.4820990140.

Adding to 315101242 its reverse (242101513), we get a palindrome (557202755).

The spelling of 315101242 in words is "three hundred fifteen million, one hundred one thousand, two hundred forty-two".