112291897 has 2 divisors, whose sum is σ = 112291898. Its totient is φ = 112291896.

The previous prime is 112291867. The next prime is 112291931. The reversal of 112291897 is 798192211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86322681 + 25969216 = 9291^2 + 5096^2 .

It is a cyclic number.

It is not a de Polignac number, because 112291897 - 2⁷ = 112291769 is a prime.

It is not a weakly prime, because it can be changed into another prime (112291867) 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, 56145948 + 56145949.

It is an arithmetic number, because the mean of its divisors is an integer number (56145949).

Almost surely, 2^112291897 is an apocalyptic number.

It is an amenable number.

112291897 is a deficient number, since it is larger than the sum of its proper divisors (1).

112291897 is an equidigital number, since it uses as much as digits as its factorization.

112291897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 40.

The square root of 112291897 is about 10596.7871074208. The cubic root of 112291897 is about 482.4468474832.

The spelling of 112291897 in words is "one hundred twelve million, two hundred ninety-one thousand, eight hundred ninety-seven".