31124132 has 12 divisors (see below), whose sum is σ = 58657116. Its totient is φ = 14364960.

The previous prime is 31124123. The next prime is 31124143. The reversal of 31124132 is 23142113.

It can be written as a sum of positive squares in 2 ways, for example, as 13366336 + 17757796 = 3656^2 + 4214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31124132.

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, 299219 + ... + 299322.

It is an arithmetic number, because the mean of its divisors is an integer number (4888093).

Almost surely, 2^31124132 is an apocalyptic number.

It is an amenable number.

31124132 is a deficient number, since it is larger than the sum of its proper divisors (27532984).

31124132 is a wasteful number, since it uses less digits than its factorization.

31124132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598558 (or 598556 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 31124132 is about 5578.9006085429. The cubic root of 31124132 is about 314.5568034506.

Adding to 31124132 its reverse (23142113), we get a palindrome (54266245).

The spelling of 31124132 in words is "thirty-one million, one hundred twenty-four thousand, one hundred thirty-two".