31130693 has 8 divisors (see below), whose sum is σ = 34104576. Its totient is φ = 28180800.

The previous prime is 31130657. The next prime is 31130711. The reversal of 31130693 is 39603113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31130693 - 2¹² = 31126597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221 + ... + 8522.

It is an arithmetic number, because the mean of its divisors is an integer number (4263072).

Almost surely, 2^31130693 is an apocalyptic number.

It is an amenable number.

31130693 is a deficient number, since it is larger than the sum of its proper divisors (2973883).

31130693 is a wasteful number, since it uses less digits than its factorization.

31130693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11995.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 31130693 is about 5579.4885966368. The cubic root of 31130693 is about 314.5789048668.

The spelling of 31130693 in words is "thirty-one million, one hundred thirty thousand, six hundred ninety-three".