312161132 has 24 divisors (see below), whose sum is σ = 553272720. Its totient is φ = 154091520.

The previous prime is 312161131. The next prime is 312161147. The reversal of 312161132 is 231161213.

312161132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (312161131) 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, 220844 + ... + 222252.

It is an arithmetic number, because the mean of its divisors is an integer number (23053030).

Almost surely, 2^312161132 is an apocalyptic number.

It is an amenable number.

312161132 is a deficient number, since it is larger than the sum of its proper divisors (241111588).

312161132 is a wasteful number, since it uses less digits than its factorization.

312161132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081 (or 2079 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 312161132 is about 17668.0822954841. The cubic root of 312161132 is about 678.3590276287.

The spelling of 312161132 in words is "three hundred twelve million, one hundred sixty-one thousand, one hundred thirty-two".