12492039 has 24 divisors (see below), whose sum is σ = 19701120. Its totient is φ = 6896880.

The previous prime is 12492031. The next prime is 12492043. The reversal of 12492039 is 93029421.

It is not a de Polignac number, because 12492039 - 2³ = 12492031 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12491997 and 12492015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19872 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (820880).

Almost surely, 2^12492039 is an apocalyptic number.

12492039 is a deficient number, since it is larger than the sum of its proper divisors (7209081).

12492039 is an equidigital number, since it uses as much as digits as its factorization.

12492039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12492039 is about 3534.4078711999. The cubic root of 12492039 is about 232.0301622992.

The spelling of 12492039 in words is "twelve million, four hundred ninety-two thousand, thirty-nine".