111683601 has 6 divisors (see below), whose sum is σ = 161320770. Its totient is φ = 74455728.

The previous prime is 111683587. The next prime is 111683617. The reversal of 111683601 is 106386111.

It can be written as a sum of positive squares in only one way, i.e., 111323601 + 360000 = 10551^2 + 600^2 .

It is not a de Polignac number, because 111683601 - 2¹⁰ = 111682577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111683651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6204636 + ... + 6204653.

It is an arithmetic number, because the mean of its divisors is an integer number (26886795).

Almost surely, 2^111683601 is an apocalyptic number.

It is an amenable number.

111683601 is a deficient number, since it is larger than the sum of its proper divisors (49637169).

111683601 is a wasteful number, since it uses less digits than its factorization.

111683601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409295 (or 12409292 counting only the distinct ones).

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

The square root of 111683601 is about 10568.0462243501. The cubic root of 111683601 is about 481.5741160418.

The spelling of 111683601 in words is "one hundred eleven million, six hundred eighty-three thousand, six hundred one".