111906059 has 2 divisors, whose sum is σ = 111906060. Its totient is φ = 111906058.

The previous prime is 111906037. The next prime is 111906071. The reversal of 111906059 is 950609111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111906059 is a prime.

It is a super-2 number, since 2×111906059² = 25045932081822962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111909059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55953029 + 55953030.

It is an arithmetic number, because the mean of its divisors is an integer number (55953030).

Almost surely, 2^111906059 is an apocalyptic number.

111906059 is a deficient number, since it is larger than the sum of its proper divisors (1).

111906059 is an equidigital number, since it uses as much as digits as its factorization.

111906059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 32.

The square root of 111906059 is about 10578.5660181331. The cubic root of 111906059 is about 481.8936465818.

The spelling of 111906059 in words is "one hundred eleven million, nine hundred six thousand, fifty-nine".