111131149 has 2 divisors, whose sum is σ = 111131150. Its totient is φ = 111131148.

The previous prime is 111131131. The next prime is 111131177. The reversal of 111131149 is 941131111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103938025 + 7193124 = 10195^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 111131149 - 2⁹ = 111130637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111131549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55565574 + 55565575.

It is an arithmetic number, because the mean of its divisors is an integer number (55565575).

Almost surely, 2^111131149 is an apocalyptic number.

It is an amenable number.

111131149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111131149 is an equidigital number, since it uses as much as digits as its factorization.

111131149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 22.

The square root of 111131149 is about 10541.8759715717. The cubic root of 111131149 is about 480.7787546687.

The spelling of 111131149 in words is "one hundred eleven million, one hundred thirty-one thousand, one hundred forty-nine".