111170149 has 2 divisors, whose sum is σ = 111170150. Its totient is φ = 111170148.

The previous prime is 111170141. The next prime is 111170161. The reversal of 111170149 is 941071111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102212100 + 8958049 = 10110^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 111170149 - 2³ = 111170141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111170141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55585074 + 55585075.

It is an arithmetic number, because the mean of its divisors is an integer number (55585075).

Almost surely, 2^111170149 is an apocalyptic number.

It is an amenable number.

111170149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111170149 is an equidigital number, since it uses as much as digits as its factorization.

111170149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

The square root of 111170149 is about 10543.7255749569. The cubic root of 111170149 is about 480.8349890627.

The spelling of 111170149 in words is "one hundred eleven million, one hundred seventy thousand, one hundred forty-nine".