111132139 has 2 divisors, whose sum is σ = 111132140. Its totient is φ = 111132138.

The previous prime is 111132137. The next prime is 111132169. The reversal of 111132139 is 931231111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111132139 - 2¹ = 111132137 is a prime.

Together with 111132137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111132137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55566069 + 55566070.

It is an arithmetic number, because the mean of its divisors is an integer number (55566070).

Almost surely, 2^111132139 is an apocalyptic number.

111132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111132139 is an equidigital number, since it uses as much as digits as its factorization.

111132139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 22.

The square root of 111132139 is about 10541.9229270565. The cubic root of 111132139 is about 480.7801823199.

The spelling of 111132139 in words is "one hundred eleven million, one hundred thirty-two thousand, one hundred thirty-nine".