12949131 has 16 divisors (see below), whose sum is σ = 18658304. Its totient is φ = 7941024.

The previous prime is 12949117. The next prime is 12949147. The reversal of 12949131 is 13194921.

12949131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12949131 - 2⁶ = 12949067 is a prime.

It is a super-2 number, since 2×12949131² = 335359987310322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12949031) 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, 21030 + ... + 21636.

It is an arithmetic number, because the mean of its divisors is an integer number (1166144).

Almost surely, 2^12949131 is an apocalyptic number.

12949131 is a deficient number, since it is larger than the sum of its proper divisors (5709173).

12949131 is a wasteful number, since it uses less digits than its factorization.

12949131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its digits is 1944, while the sum is 30.

The square root of 12949131 is about 3598.4901000281. The cubic root of 12949131 is about 234.8263754499.

The spelling of 12949131 in words is "twelve million, nine hundred forty-nine thousand, one hundred thirty-one".