12939099 has 4 divisors (see below), whose sum is σ = 17252136. Its totient is φ = 8626064.

The previous prime is 12939083. The next prime is 12939109. The reversal of 12939099 is 99093921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99093921 = 3 ⋅33031307.

It is a cyclic number.

It is not a de Polignac number, because 12939099 - 2⁴ = 12939083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12939099.

It is not an unprimeable number, because it can be changed into a prime (12939029) 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, 2156514 + ... + 2156519.

It is an arithmetic number, because the mean of its divisors is an integer number (4313034).

Almost surely, 2^12939099 is an apocalyptic number.

12939099 is a deficient number, since it is larger than the sum of its proper divisors (4313037).

12939099 is an equidigital number, since it uses as much as digits as its factorization.

12939099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313036.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 12939099 is about 3597.0959119823. The cubic root of 12939099 is about 234.7657179222.

It can be divided in two parts, 1 and 2939099, that added together give a triangular number (2939100 = T₂₄₂₄).

The spelling of 12939099 in words is "twelve million, nine hundred thirty-nine thousand, ninety-nine".