12989251 has 16 divisors (see below), whose sum is σ = 14732928. Its totient is φ = 11348800.

The previous prime is 12989239. The next prime is 12989261. The reversal of 12989251 is 15298921.

It is not a de Polignac number, because 12989251 - 2⁵ = 12989219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12989251.

It is not an unprimeable number, because it can be changed into a prime (12989201) 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 15 ways as a sum of consecutive naturals, for example, 37260 + ... + 37606.

It is an arithmetic number, because the mean of its divisors is an integer number (920808).

Almost surely, 2^12989251 is an apocalyptic number.

12989251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12989251 is a deficient number, since it is larger than the sum of its proper divisors (1743677).

12989251 is a wasteful number, since it uses less digits than its factorization.

12989251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482.

The product of its digits is 12960, while the sum is 37.

The square root of 12989251 is about 3604.0603491063. The cubic root of 12989251 is about 235.0686445008.

The spelling of 12989251 in words is "twelve million, nine hundred eighty-nine thousand, two hundred fifty-one".