1112199997 has 2 divisors, whose sum is σ = 1112199998. Its totient is φ = 1112199996.

The previous prime is 1112199961. The next prime is 1112200003. The reversal of 1112199997 is 7999912111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 655052836 + 457147161 = 25594^2 + 21381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112199997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112199997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112199197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556099998 + 556099999.

It is an arithmetic number, because the mean of its divisors is an integer number (556099999).

Almost surely, 2^1112199997 is an apocalyptic number.

It is an amenable number.

1112199997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112199997 is an equidigital number, since it uses as much as digits as its factorization.

1112199997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 49.

The square root of 1112199997 is about 33349.6626219817. The cubic root of 1112199997 is about 1036.0824003495.

The spelling of 1112199997 in words is "one billion, one hundred twelve million, one hundred ninety-nine thousand, nine hundred ninety-seven".