12389154 has 16 divisors (see below), whose sum is σ = 25448448. Its totient is φ = 4018032.

The previous prime is 12389147. The next prime is 12389173. The reversal of 12389154 is 45198321.

It is a super-2 number, since 2×12389154² = 306982273671432, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27682 + ... + 28125.

It is an arithmetic number, because the mean of its divisors is an integer number (1590528).

Almost surely, 2^12389154 is an apocalyptic number.

12389154 is an abundant number, since it is smaller than the sum of its proper divisors (13059294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12389154 is a wasteful number, since it uses less digits than its factorization.

12389154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55849.

The product of its digits is 8640, while the sum is 33.

The square root of 12389154 is about 3519.8230069138. The cubic root of 12389154 is about 231.3914018081.

The spelling of 12389154 in words is "twelve million, three hundred eighty-nine thousand, one hundred fifty-four".