315251525042 has 8 divisors (see below), whose sum is σ = 474280485276. Its totient is φ = 157158029952.

The previous prime is 315251524997. The next prime is 315251525059. The reversal of 315251525042 is 240525152513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 312669970561 + 2581554481 = 559169^2 + 50809^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 315251524993 and 315251525011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233865443 + ... + 233866790.

Almost surely, 2^315251525042 is an apocalyptic number.

315251525042 is a deficient number, since it is larger than the sum of its proper divisors (159028960234).

315251525042 is a wasteful number, since it uses less digits than its factorization.

315251525042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467732572.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 315251525042 its reverse (240525152513), we get a palindrome (555776677555).

The spelling of 315251525042 in words is "three hundred fifteen billion, two hundred fifty-one million, five hundred twenty-five thousand, forty-two".