111983659 has 2 divisors, whose sum is σ = 111983660. Its totient is φ = 111983658.

The previous prime is 111983639. The next prime is 111983699. The reversal of 111983659 is 956389111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111983659 is a prime.

It is not a weakly prime, because it can be changed into another prime (111983639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55991829 + 55991830.

It is an arithmetic number, because the mean of its divisors is an integer number (55991830).

Almost surely, 2^111983659 is an apocalyptic number.

111983659 is a deficient number, since it is larger than the sum of its proper divisors (1).

111983659 is an equidigital number, since it uses as much as digits as its factorization.

111983659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 43.

The square root of 111983659 is about 10582.2331764141. The cubic root of 111983659 is about 482.0050087575.

The spelling of 111983659 in words is "one hundred eleven million, nine hundred eighty-three thousand, six hundred fifty-nine".