12495439 has 8 divisors (see below), whose sum is σ = 13889232. Its totient is φ = 11144640.

The previous prime is 12495421. The next prime is 12495487. The reversal of 12495439 is 93459421.

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

It is a cyclic number.

It is not a de Polignac number, because 12495439 - 2⁷ = 12495311 is a prime.

It is a super-2 number, since 2×12495439² = 312271991605442, 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 = 12495398 and 12495407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12496439) 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, 10134 + ... + 11299.

It is an arithmetic number, because the mean of its divisors is an integer number (1736154).

Almost surely, 2^12495439 is an apocalyptic number.

12495439 is a deficient number, since it is larger than the sum of its proper divisors (1393793).

12495439 is a wasteful number, since it uses less digits than its factorization.

12495439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21497.

The product of its digits is 38880, while the sum is 37.

The square root of 12495439 is about 3534.8888242772. Note that the first 4 decimals coincide. The cubic root of 12495439 is about 232.0512111979.

The spelling of 12495439 in words is "twelve million, four hundred ninety-five thousand, four hundred thirty-nine".