12889154 has 8 divisors (see below), whose sum is σ = 20174400. Its totient is φ = 6164356.

The previous prime is 12889147. The next prime is 12889157. The reversal of 12889154 is 45198821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12889154² = 332260581671432, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12889157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140054 + ... + 140145.

It is an arithmetic number, because the mean of its divisors is an integer number (2521800).

Almost surely, 2^12889154 is an apocalyptic number.

12889154 is a deficient number, since it is larger than the sum of its proper divisors (7285246).

12889154 is a wasteful number, since it uses less digits than its factorization.

12889154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280224.

The product of its digits is 23040, while the sum is 38.

The square root of 12889154 is about 3590.1467936562. The cubic root of 12889154 is about 234.4632627335.

The spelling of 12889154 in words is "twelve million, eight hundred eighty-nine thousand, one hundred fifty-four".