12294539 has 4 divisors (see below), whose sum is σ = 12941640. Its totient is φ = 11647440.

The previous prime is 12294523. The next prime is 12294551. The reversal of 12294539 is 93549221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12294539 - 2⁴ = 12294523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12294499 and 12294508.

It is not an unprimeable number, because it can be changed into a prime (12294509) 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, 323522 + ... + 323559.

It is an arithmetic number, because the mean of its divisors is an integer number (3235410).

Almost surely, 2^12294539 is an apocalyptic number.

12294539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12294539 is a deficient number, since it is larger than the sum of its proper divisors (647101).

12294539 is an equidigital number, since it uses as much as digits as its factorization.

12294539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647100.

The product of its digits is 19440, while the sum is 35.

The square root of 12294539 is about 3506.3569413281. The cubic root of 12294539 is about 230.8008565859.

The spelling of 12294539 in words is "twelve million, two hundred ninety-four thousand, five hundred thirty-nine".