111941149 has 2 divisors, whose sum is σ = 111941150. Its totient is φ = 111941148.

The previous prime is 111941143. The next prime is 111941173. The reversal of 111941149 is 941149111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93605625 + 18335524 = 9675^2 + 4282^2 .

It is a cyclic number.

It is not a de Polignac number, because 111941149 - 2⁹ = 111940637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111941149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111941143) 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, 55970574 + 55970575.

It is an arithmetic number, because the mean of its divisors is an integer number (55970575).

Almost surely, 2^111941149 is an apocalyptic number.

It is an amenable number.

111941149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111941149 is an equidigital number, since it uses as much as digits as its factorization.

111941149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 31.

The square root of 111941149 is about 10580.2244305119. The cubic root of 111941149 is about 481.9440098987.

The spelling of 111941149 in words is "one hundred eleven million, nine hundred forty-one thousand, one hundred forty-nine".