11992139 has 2 divisors, whose sum is σ = 11992140. Its totient is φ = 11992138.

The previous prime is 11992117. The next prime is 11992147. The reversal of 11992139 is 93129911.

11992139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11992139 is a prime.

It is a super-2 number, since 2×11992139² = 287622795590642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11992099 and 11992108.

It is not a weakly prime, because it can be changed into another prime (11992159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5996069 + 5996070.

It is an arithmetic number, because the mean of its divisors is an integer number (5996070).

Almost surely, 2^11992139 is an apocalyptic number.

11992139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11992139 is an equidigital number, since it uses as much as digits as its factorization.

11992139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 35.

The square root of 11992139 is about 3462.9667916398. The cubic root of 11992139 is about 228.8928453756.

The spelling of 11992139 in words is "eleven million, nine hundred ninety-two thousand, one hundred thirty-nine".