12551429 has 4 divisors (see below), whose sum is σ = 13692480. Its totient is φ = 11410380.

The previous prime is 12551417. The next prime is 12551437. The reversal of 12551429 is 92415521.

12551429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92415521 = 11 ⋅8401411.

It is a cyclic number.

It is not a de Polignac number, because 12551429 - 2²⁰ = 11502853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551479) 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, 570509 + ... + 570530.

It is an arithmetic number, because the mean of its divisors is an integer number (3423120).

Almost surely, 2^12551429 is an apocalyptic number.

It is an amenable number.

12551429 is a deficient number, since it is larger than the sum of its proper divisors (1141051).

12551429 is a wasteful number, since it uses less digits than its factorization.

12551429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141050.

The product of its digits is 3600, while the sum is 29.

The square root of 12551429 is about 3542.7995991871. The cubic root of 12551429 is about 232.3972891991.

The spelling of 12551429 in words is "twelve million, five hundred fifty-one thousand, four hundred twenty-nine".