312540532 has 12 divisors (see below), whose sum is σ = 547106560. Its totient is φ = 156224376.

The previous prime is 312540497. The next prime is 312540541. The reversal of 312540532 is 235045213.

It is a junction number, because it is equal to n+sod(n) for n = 312540497 and 312540506.

It is a congruent number.

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, 7243 + ... + 26029.

Almost surely, 2^312540532 is an apocalyptic number.

It is an amenable number.

312540532 is a deficient number, since it is larger than the sum of its proper divisors (234566028).

312540532 is a wasteful number, since it uses less digits than its factorization.

312540532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22950 (or 22948 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 312540532 is about 17678.8159105750. The cubic root of 312540532 is about 678.6337417537.

Adding to 312540532 its reverse (235045213), we get a palindrome (547585745).

The spelling of 312540532 in words is "three hundred twelve million, five hundred forty thousand, five hundred thirty-two".