315512 has 8 divisors (see below), whose sum is σ = 591600. Its totient is φ = 157752.

The previous prime is 315493. The next prime is 315517. The reversal of 315512 is 215513.

315512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315512.

It is not an unprimeable number, because it can be changed into a prime (315517) by changing a digit.

315512 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19712 + ... + 19727.

It is an arithmetic number, because the mean of its divisors is an integer number (73950).

2³¹⁵⁵¹² is an apocalyptic number.

It is an amenable number.

315512 is a deficient number, since it is larger than the sum of its proper divisors (276088).

315512 is a wasteful number, since it uses less digits than its factorization.

315512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39445 (or 39441 counting only the distinct ones).

The product of its digits is 150, while the sum is 17.

The square root of 315512 is about 561.7045486731. The cubic root of 315512 is about 68.0777657035.

Subtracting from 315512 its reverse (215513), we obtain a palindrome (99999).

The spelling of 315512 in words is "three hundred fifteen thousand, five hundred twelve".