315242651 has 8 divisors (see below), whose sum is σ = 319719744. Its totient is φ = 310794120.

The previous prime is 315242633. The next prime is 315242657. The reversal of 315242651 is 156242513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315242651 - 2¹⁸ = 314980507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315242657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15596 + ... + 29558.

It is an arithmetic number, because the mean of its divisors is an integer number (39964968).

Almost surely, 2^315242651 is an apocalyptic number.

315242651 is a deficient number, since it is larger than the sum of its proper divisors (4477093).

315242651 is a wasteful number, since it uses less digits than its factorization.

315242651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281.

The product of its digits is 7200, while the sum is 29.

The square root of 315242651 is about 17755.0739508457. The cubic root of 315242651 is about 680.5838778386.

The spelling of 315242651 in words is "three hundred fifteen million, two hundred forty-two thousand, six hundred fifty-one".