31386052 has 6 divisors (see below), whose sum is σ = 54925598. Its totient is φ = 15693024.

The previous prime is 31386041. The next prime is 31386059. The reversal of 31386052 is 25068313.

It can be written as a sum of positive squares in only one way, i.e., 24760576 + 6625476 = 4976^2 + 2574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31386052.

It is not an unprimeable number, because it can be changed into a prime (31386059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3923253 + ... + 3923260.

Almost surely, 2^31386052 is an apocalyptic number.

It is an amenable number.

31386052 is a deficient number, since it is larger than the sum of its proper divisors (23539546).

31386052 is a wasteful number, since it uses less digits than its factorization.

31386052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846517 (or 7846515 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 31386052 is about 5602.3255885391. The cubic root of 31386052 is about 315.4367067879.

The spelling of 31386052 in words is "thirty-one million, three hundred eighty-six thousand, fifty-two".