111125992 has 8 divisors (see below), whose sum is σ = 208361250. Its totient is φ = 55562992.

The previous prime is 111125981. The next prime is 111126007. The reversal of 111125992 is 299521111.

It can be written as a sum of positive squares in only one way, i.e., 110376036 + 749956 = 10506^2 + 866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6945367 + ... + 6945382.

Almost surely, 2^111125992 is an apocalyptic number.

It is an amenable number.

111125992 is a deficient number, since it is larger than the sum of its proper divisors (97235258).

111125992 is a wasteful number, since it uses less digits than its factorization.

111125992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890755 (or 13890751 counting only the distinct ones).

The product of its digits is 1620, while the sum is 31.

The square root of 111125992 is about 10541.6313727999. The cubic root of 111125992 is about 480.7713177667.

The spelling of 111125992 in words is "one hundred eleven million, one hundred twenty-five thousand, nine hundred ninety-two".