12589381 has 16 divisors (see below), whose sum is σ = 15308800. Its totient is φ = 10112688.

The previous prime is 12589351. The next prime is 12589387. The reversal of 12589381 is 18398521.

It is a cyclic number.

It is not a de Polignac number, because 12589381 - 2⁷ = 12589253 is a prime.

It is a super-2 number, since 2×12589381² = 316985027926322, which contains 22 as substring.

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 12589381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12589387) 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, 13240 + ... + 14158.

It is an arithmetic number, because the mean of its divisors is an integer number (956800).

Almost surely, 2^12589381 is an apocalyptic number.

It is an amenable number.

12589381 is a deficient number, since it is larger than the sum of its proper divisors (2719419).

12589381 is a wasteful number, since it uses less digits than its factorization.

12589381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048.

The product of its digits is 17280, while the sum is 37.

The square root of 12589381 is about 3548.1517724021. The cubic root of 12589381 is about 232.6312882427.

The spelling of 12589381 in words is "twelve million, five hundred eighty-nine thousand, three hundred eighty-one".