12131497 has 8 divisors (see below), whose sum is σ = 14092352. Its totient is φ = 10227600.

The previous prime is 12131473. The next prime is 12131507. The reversal of 12131497 is 79413121.

12131497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12131497 - 2⁷ = 12131369 is a prime.

It is a super-2 number, since 2×12131497² = 294346438922018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13779 + ... + 14632.

It is an arithmetic number, because the mean of its divisors is an integer number (1761544).

Almost surely, 2^12131497 is an apocalyptic number.

It is an amenable number.

12131497 is a deficient number, since it is larger than the sum of its proper divisors (1960855).

12131497 is an equidigital number, since it uses as much as digits as its factorization.

12131497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28479.

The product of its digits is 1512, while the sum is 28.

The square root of 12131497 is about 3483.0298591887. The cubic root of 12131497 is about 229.7760706467.

The spelling of 12131497 in words is "twelve million, one hundred thirty-one thousand, four hundred ninety-seven".