31134128 has 10 divisors (see below), whose sum is σ = 60322404. Its totient is φ = 15567056.

The previous prime is 31134127. The next prime is 31134133. The reversal of 31134128 is 82143113.

It is not an unprimeable number, because it can be changed into a prime (31134127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972926 + ... + 972957.

Almost surely, 2^31134128 is an apocalyptic number.

It is an amenable number.

31134128 is a deficient number, since it is larger than the sum of its proper divisors (29188276).

31134128 is a wasteful number, since it uses less digits than its factorization.

31134128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945891 (or 1945885 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 31134128 is about 5579.7964120566. The cubic root of 31134128 is about 314.5904747859.

The spelling of 31134128 in words is "thirty-one million, one hundred thirty-four thousand, one hundred twenty-eight".