111417997 has 2 divisors, whose sum is σ = 111417998. Its totient is φ = 111417996.

The previous prime is 111417973. The next prime is 111418001. The reversal of 111417997 is 799714111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106626276 + 4791721 = 10326^2 + 2189^2 .

It is a cyclic number.

It is not a de Polignac number, because 111417997 - 2¹¹ = 111415949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111417967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55708998 + 55708999.

It is an arithmetic number, because the mean of its divisors is an integer number (55708999).

Almost surely, 2^111417997 is an apocalyptic number.

It is an amenable number.

111417997 is a deficient number, since it is larger than the sum of its proper divisors (1).

111417997 is an equidigital number, since it uses as much as digits as its factorization.

111417997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 40.

The square root of 111417997 is about 10555.4723721869. The cubic root of 111417997 is about 481.1920559460.

The spelling of 111417997 in words is "one hundred eleven million, four hundred seventeen thousand, nine hundred ninety-seven".