31317068 has 18 divisors (see below), whose sum is σ = 56636748. Its totient is φ = 15151560.

The previous prime is 31317049. The next prime is 31317079. The reversal of 31317068 is 86071313.

31317068 is nontrivially palindromic in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 31317068.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230 + ... + 7917.

It is an arithmetic number, because the mean of its divisors is an integer number (3146486).

Almost surely, 2^31317068 is an apocalyptic number.

It is an amenable number.

31317068 is a deficient number, since it is larger than the sum of its proper divisors (25319680).

31317068 is a wasteful number, since it uses less digits than its factorization.

31317068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213 (or 8180 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 31317068 is about 5596.1654728930. The cubic root of 31317068 is about 315.2054358232.

The spelling of 31317068 in words is "thirty-one million, three hundred seventeen thousand, sixty-eight".