111680739 has 6 divisors (see below), whose sum is σ = 161316636. Its totient is φ = 74453820.

The previous prime is 111680717. The next prime is 111680753. The reversal of 111680739 is 937086111.

It is not a de Polignac number, because 111680739 - 2⁵ = 111680707 is a prime.

It is a super-2 number, since 2×111680739² = 24945174927172242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111680039) 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 in 5 ways as a sum of consecutive naturals, for example, 6204477 + ... + 6204494.

It is an arithmetic number, because the mean of its divisors is an integer number (26886106).

Almost surely, 2^111680739 is an apocalyptic number.

111680739 is a deficient number, since it is larger than the sum of its proper divisors (49635897).

111680739 is a wasteful number, since it uses less digits than its factorization.

111680739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12408977 (or 12408974 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 111680739 is about 10567.9108152936. The cubic root of 111680739 is about 481.5700024063.

The spelling of 111680739 in words is "one hundred eleven million, six hundred eighty thousand, seven hundred thirty-nine".