111126139 has 2 divisors, whose sum is σ = 111126140. Its totient is φ = 111126138.

The previous prime is 111126109. The next prime is 111126151. The reversal of 111126139 is 931621111.

It is a strong prime.

It is an emirp because it is prime and its reverse (931621111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111126139 - 2⁷ = 111126011 is a prime.

It is not a weakly prime, because it can be changed into another prime (111126109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55563069 + 55563070.

It is an arithmetic number, because the mean of its divisors is an integer number (55563070).

Almost surely, 2^111126139 is an apocalyptic number.

111126139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111126139 is an equidigital number, since it uses as much as digits as its factorization.

111126139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The square root of 111126139 is about 10541.6383451530. The cubic root of 111126139 is about 480.7715297584.

The spelling of 111126139 in words is "one hundred eleven million, one hundred twenty-six thousand, one hundred thirty-nine".