111402997 has 2 divisors, whose sum is σ = 111402998. Its totient is φ = 111402996.

The previous prime is 111402953. The next prime is 111403009. The reversal of 111402997 is 799204111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74545956 + 36857041 = 8634^2 + 6071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111402997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111402937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55701498 + 55701499.

It is an arithmetic number, because the mean of its divisors is an integer number (55701499).

Almost surely, 2^111402997 is an apocalyptic number.

It is an amenable number.

111402997 is a deficient number, since it is larger than the sum of its proper divisors (1).

111402997 is an equidigital number, since it uses as much as digits as its factorization.

111402997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 111402997 is about 10554.7618163557. The cubic root of 111402997 is about 481.1704609764.

The spelling of 111402997 in words is "one hundred eleven million, four hundred two thousand, nine hundred ninety-seven".