12425391 has 12 divisors (see below), whose sum is σ = 19579560. Its totient is φ = 7530480.

The previous prime is 12425363. The next prime is 12425393. The reversal of 12425391 is 19352421.

12425391 is a `hidden beast` number, since 124 + 2 + 539 + 1 = 666.

12425391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12425391 - 2⁷ = 12425263 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62656 + ... + 62853.

It is an arithmetic number, because the mean of its divisors is an integer number (1631630).

Almost surely, 2^12425391 is an apocalyptic number.

12425391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12425391 is a deficient number, since it is larger than the sum of its proper divisors (7154169).

12425391 is a wasteful number, since it uses less digits than its factorization.

12425391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125526 (or 125523 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12425391 is about 3524.9668083544. The cubic root of 12425391 is about 231.6167808901.

The spelling of 12425391 in words is "twelve million, four hundred twenty-five thousand, three hundred ninety-one".