12554943 has 8 divisors (see below), whose sum is σ = 16771248. Its totient is φ = 8354304.

The previous prime is 12554939. The next prime is 12554957. The reversal of 12554943 is 34945521.

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

It is not a de Polignac number, because 12554943 - 2² = 12554939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (2096406).

Almost surely, 2^12554943 is an apocalyptic number.

12554943 is a deficient number, since it is larger than the sum of its proper divisors (4216305).

12554943 is an equidigital number, since it uses as much as digits as its factorization.

12554943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7833.

The product of its digits is 21600, while the sum is 33.

The square root of 12554943 is about 3543.2954999548. The cubic root of 12554943 is about 232.4189751196.

The spelling of 12554943 in words is "twelve million, five hundred fifty-four thousand, nine hundred forty-three".