12294139 has 16 divisors (see below), whose sum is σ = 14565600. Its totient is φ = 10229760.

The previous prime is 12294127. The next prime is 12294143. The reversal of 12294139 is 93149221.

It is a cyclic number.

It is not a de Polignac number, because 12294139 - 2¹³ = 12285947 is a prime.

It is a super-2 number, since 2×12294139² = 302291707502642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12294139.

It is not an unprimeable number, because it can be changed into a prime (12294239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21019 + ... + 21595.

It is an arithmetic number, because the mean of its divisors is an integer number (910350).

Almost surely, 2^12294139 is an apocalyptic number.

12294139 is a deficient number, since it is larger than the sum of its proper divisors (2271461).

12294139 is a wasteful number, since it uses less digits than its factorization.

12294139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750.

The product of its digits is 3888, while the sum is 31.

The square root of 12294139 is about 3506.2999016057. The cubic root of 12294139 is about 230.7983535411.

The spelling of 12294139 in words is "twelve million, two hundred ninety-four thousand, one hundred thirty-nine".