11868139 has 2 divisors, whose sum is σ = 11868140. Its totient is φ = 11868138.

The previous prime is 11868113. The next prime is 11868151. The reversal of 11868139 is 93186811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11868139 - 2¹⁵ = 11835371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11868098 and 11868107.

It is not a weakly prime, because it can be changed into another prime (11868169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5934069 + 5934070.

It is an arithmetic number, because the mean of its divisors is an integer number (5934070).

Almost surely, 2^11868139 is an apocalyptic number.

11868139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11868139 is an equidigital number, since it uses as much as digits as its factorization.

11868139 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11868139 is about 3445.0165456787. The cubic root of 11868139 is about 228.1011849537.

The spelling of 11868139 in words is "eleven million, eight hundred sixty-eight thousand, one hundred thirty-nine".