12889045 has 16 divisors (see below), whose sum is σ = 17015040. Its totient is φ = 9313344.

The previous prime is 12889033. The next prime is 12889073. The reversal of 12889045 is 54098821.

It is a cyclic number.

It is not a de Polignac number, because 12889045 - 2⁵ = 12889013 is a prime.

It is a super-2 number, since 2×12889045² = 332254962024050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12888995 and 12889013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 5164.

It is an arithmetic number, because the mean of its divisors is an integer number (1063440).

Almost surely, 2^12889045 is an apocalyptic number.

It is an amenable number.

12889045 is a deficient number, since it is larger than the sum of its proper divisors (4125995).

12889045 is a wasteful number, since it uses less digits than its factorization.

12889045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 12889045 is about 3590.1316131863. The cubic root of 12889045 is about 234.4626018013.

The spelling of 12889045 in words is "twelve million, eight hundred eighty-nine thousand, forty-five".