111680136 has 24 divisors (see below), whose sum is σ = 302467230. Its totient is φ = 37226688.

The previous prime is 111680099. The next prime is 111680147. The reversal of 111680136 is 631086111.

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 799236 = 10530^2 + 894^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 775485 + ... + 775628.

Almost surely, 2^111680136 is an apocalyptic number.

It is an amenable number.

111680136 is an abundant number, since it is smaller than the sum of its proper divisors (190787094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111680136 is a wasteful number, since it uses less digits than its factorization.

111680136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551125 (or 1551118 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 111680136 is about 10567.8822854913. The cubic root of 111680136 is about 481.5691356879.

The spelling of 111680136 in words is "one hundred eleven million, six hundred eighty thousand, one hundred thirty-six".