111965049 has 36 divisors (see below), whose sum is σ = 188972784. Its totient is φ = 63694512.

The previous prime is 111965023. The next prime is 111965057. The reversal of 111965049 is 940569111.

It is not a de Polignac number, because 111965049 - 2⁷ = 111964921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111965059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134974 + ... + 135800.

It is an arithmetic number, because the mean of its divisors is an integer number (5249244).

Almost surely, 2^111965049 is an apocalyptic number.

It is an amenable number.

111965049 is a deficient number, since it is larger than the sum of its proper divisors (77007735).

111965049 is a wasteful number, since it uses less digits than its factorization.

111965049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 111965049 is about 10581.3538358756. The cubic root of 111965049 is about 481.9783066171.

The spelling of 111965049 in words is "one hundred eleven million, nine hundred sixty-five thousand, forty-nine".