12511889 has 8 divisors (see below), whose sum is σ = 13534080. Its totient is φ = 11498256.

The previous prime is 12511871. The next prime is 12511901. The reversal of 12511889 is 98811521.

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 12511889 - 2¹⁶ = 12446353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511859) 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, 1094 + ... + 5120.

It is an arithmetic number, because the mean of its divisors is an integer number (1691760).

Almost surely, 2^12511889 is an apocalyptic number.

It is an amenable number.

12511889 is a deficient number, since it is larger than the sum of its proper divisors (1022191).

12511889 is a wasteful number, since it uses less digits than its factorization.

12511889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279.

The product of its digits is 5760, while the sum is 35.

The square root of 12511889 is about 3537.2148648336. The cubic root of 12511889 is about 232.1529968318.

The spelling of 12511889 in words is "twelve million, five hundred eleven thousand, eight hundred eighty-nine".