31147112 has 16 divisors (see below), whose sum is σ = 58706340. Its totient is φ = 15492096.

The previous prime is 31147091. The next prime is 31147133. The reversal of 31147112 is 21174113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31147091) and next prime (31147133).

It can be written as a sum of positive squares in 2 ways, for example, as 29441476 + 1705636 = 5426^2 + 1306^2 .

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, 8543 + ... + 11630.

Almost surely, 2^31147112 is an apocalyptic number.

It is an amenable number.

31147112 is a deficient number, since it is larger than the sum of its proper divisors (27559228).

31147112 is a wasteful number, since it uses less digits than its factorization.

31147112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20372 (or 20368 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 31147112 is about 5580.9597740890. The cubic root of 31147112 is about 314.6342003833.

The spelling of 31147112 in words is "thirty-one million, one hundred forty-seven thousand, one hundred twelve".