111695149 has 2 divisors, whose sum is σ = 111695150. Its totient is φ = 111695148.

The previous prime is 111695137. The next prime is 111695159. The reversal of 111695149 is 941596111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72131049 + 39564100 = 8493^2 + 6290^2 .

It is a cyclic number.

It is not a de Polignac number, because 111695149 - 2⁹ = 111694637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111695159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55847574 + 55847575.

It is an arithmetic number, because the mean of its divisors is an integer number (55847575).

Almost surely, 2^111695149 is an apocalyptic number.

It is an amenable number.

111695149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111695149 is an equidigital number, since it uses as much as digits as its factorization.

111695149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 37.

The square root of 111695149 is about 10568.5925742267. The cubic root of 111695149 is about 481.5907136031.

The spelling of 111695149 in words is "one hundred eleven million, six hundred ninety-five thousand, one hundred forty-nine".