12554691 has 4 divisors (see below), whose sum is σ = 16739592. Its totient is φ = 8369792.

The previous prime is 12554681. The next prime is 12554699. The reversal of 12554691 is 19645521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12554691 - 2¹⁴ = 12538307 is a prime.

It is a super-2 number, since 2×12554691² = 315240532210962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12554699) 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, 2092446 + ... + 2092451.

It is an arithmetic number, because the mean of its divisors is an integer number (4184898).

Almost surely, 2^12554691 is an apocalyptic number.

12554691 is a deficient number, since it is larger than the sum of its proper divisors (4184901).

12554691 is an equidigital number, since it uses as much as digits as its factorization.

12554691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4184900.

The product of its digits is 10800, while the sum is 33.

The square root of 12554691 is about 3543.2599396601. The cubic root of 12554691 is about 232.4174200887.

The spelling of 12554691 in words is "twelve million, five hundred fifty-four thousand, six hundred ninety-one".