111317957 has 2 divisors, whose sum is σ = 111317958. Its totient is φ = 111317956.

The previous prime is 111317951. The next prime is 111317981. The reversal of 111317957 is 759713111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58232161 + 53085796 = 7631^2 + 7286^2 .

It is a cyclic number.

It is not a de Polignac number, because 111317957 - 2¹⁴ = 111301573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111317951) 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 as a sum of consecutive naturals, namely, 55658978 + 55658979.

It is an arithmetic number, because the mean of its divisors is an integer number (55658979).

Almost surely, 2^111317957 is an apocalyptic number.

It is an amenable number.

111317957 is a deficient number, since it is larger than the sum of its proper divisors (1).

111317957 is an equidigital number, since it uses as much as digits as its factorization.

111317957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6615, while the sum is 35.

The square root of 111317957 is about 10550.7325338102. The cubic root of 111317957 is about 481.0479952338.

The spelling of 111317957 in words is "one hundred eleven million, three hundred seventeen thousand, nine hundred fifty-seven".