11688139 has 2 divisors, whose sum is σ = 11688140. Its totient is φ = 11688138.

The previous prime is 11688121. The next prime is 11688151. The reversal of 11688139 is 93188611.

11688139 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11688139 - 2¹¹ = 11686091 is a prime.

It is a super-2 number, since 2×11688139² = 273225186566642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11688098 and 11688107.

It is not a weakly prime, because it can be changed into another prime (11688169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844069 + 5844070.

It is an arithmetic number, because the mean of its divisors is an integer number (5844070).

Almost surely, 2^11688139 is an apocalyptic number.

11688139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11688139 is an equidigital number, since it uses as much as digits as its factorization.

11688139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 37.

The square root of 11688139 is about 3418.7920381328. The cubic root of 11688139 is about 226.9421278594.

The spelling of 11688139 in words is "eleven million, six hundred eighty-eight thousand, one hundred thirty-nine".