12831129 has 16 divisors (see below), whose sum is σ = 19247040. Its totient is φ = 8552628.

The previous prime is 12831127. The next prime is 12831131. The reversal of 12831129 is 92113821.

12831129 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12831127) and next prime (12831131).

It is not a de Polignac number, because 12831129 - 2¹ = 12831127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12831127) 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, 747 + ... + 5120.

It is an arithmetic number, because the mean of its divisors is an integer number (1202940).

Almost surely, 2^12831129 is an apocalyptic number.

It is an amenable number.

12831129 is a deficient number, since it is larger than the sum of its proper divisors (6415911).

12831129 is an frugal number, since it uses more digits than its factorization.

12831129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5870 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 12831129 is about 3582.0565322172. The cubic root of 12831129 is about 234.1108941838.

The spelling of 12831129 in words is "twelve million, eight hundred thirty-one thousand, one hundred twenty-nine".