31055312 has 10 divisors (see below), whose sum is σ = 60169698. Its totient is φ = 15527648.

The previous prime is 31055293. The next prime is 31055333. The reversal of 31055312 is 21355013.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 8549776 = 4744^2 + 2924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970463 + ... + 970494.

Almost surely, 2^31055312 is an apocalyptic number.

It is an amenable number.

31055312 is a deficient number, since it is larger than the sum of its proper divisors (29114386).

31055312 is a wasteful number, since it uses less digits than its factorization.

31055312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940965 (or 1940959 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 31055312 is about 5572.7293133616. The cubic root of 31055312 is about 314.3247886876.

The spelling of 31055312 in words is "thirty-one million, fifty-five thousand, three hundred twelve".