12131693 has 16 divisors (see below), whose sum is σ = 14845824. Its totient is φ = 9676800.

The previous prime is 12131689. The next prime is 12131701. The reversal of 12131693 is 39613121.

It is not a de Polignac number, because 12131693 - 2² = 12131689 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 (12131653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11018 + ... + 12068.

It is an arithmetic number, because the mean of its divisors is an integer number (927864).

Almost surely, 2^12131693 is an apocalyptic number.

It is an amenable number.

12131693 is a deficient number, since it is larger than the sum of its proper divisors (2714131).

12131693 is a wasteful number, since it uses less digits than its factorization.

12131693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its digits is 972, while the sum is 26.

The square root of 12131693 is about 3483.0579954976. The cubic root of 12131693 is about 229.7773080830. Note that the first 3 decimals are identical.

The spelling of 12131693 in words is "twelve million, one hundred thirty-one thousand, six hundred ninety-three".