12554429 has 4 divisors (see below), whose sum is σ = 12695580. Its totient is φ = 12413280.

The previous prime is 12554387. The next prime is 12554447. The reversal of 12554429 is 92445521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 5784025 = 2602^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 12554429 - 2⁸ = 12554173 is a prime.

It is a super-2 number, since 2×12554429² = 315227375032082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12554395 and 12554404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554329) 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, 70442 + ... + 70619.

It is an arithmetic number, because the mean of its divisors is an integer number (3173895).

Almost surely, 2^12554429 is an apocalyptic number.

It is an amenable number.

12554429 is a deficient number, since it is larger than the sum of its proper divisors (141151).

12554429 is an equidigital number, since it uses as much as digits as its factorization.

12554429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141150.

The product of its digits is 14400, while the sum is 32.

The square root of 12554429 is about 3543.2229678641. Note that the first 3 decimals coincide. The cubic root of 12554429 is about 232.4158033281.

The spelling of 12554429 in words is "twelve million, five hundred fifty-four thousand, four hundred twenty-nine".