12392561 has 8 divisors (see below), whose sum is σ = 12985920. Its totient is φ = 11803792.

The previous prime is 12392551. The next prime is 12392563. The reversal of 12392561 is 16529321.

12392561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12392561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12392563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5186 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (1623240).

Almost surely, 2^12392561 is an apocalyptic number.

It is an amenable number.

12392561 is a deficient number, since it is larger than the sum of its proper divisors (593359).

12392561 is a wasteful number, since it uses less digits than its factorization.

12392561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its digits is 3240, while the sum is 29.

The square root of 12392561 is about 3520.3069468443. The cubic root of 12392561 is about 231.4126106346.

The spelling of 12392561 in words is "twelve million, three hundred ninety-two thousand, five hundred sixty-one".