112199561 has 2 divisors, whose sum is σ = 112199562. Its totient is φ = 112199560.

The previous prime is 112199537. The next prime is 112199567. The reversal of 112199561 is 165991211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68890000 + 43309561 = 8300^2 + 6581^2 .

It is a cyclic number.

It is not a de Polignac number, because 112199561 - 2¹⁴ = 112183177 is a prime.

It is not a weakly prime, because it can be changed into another prime (112199567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56099780 + 56099781.

It is an arithmetic number, because the mean of its divisors is an integer number (56099781).

Almost surely, 2^112199561 is an apocalyptic number.

It is an amenable number.

112199561 is a deficient number, since it is larger than the sum of its proper divisors (1).

112199561 is an equidigital number, since it uses as much as digits as its factorization.

112199561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 35.

The square root of 112199561 is about 10592.4294191654. The cubic root of 112199561 is about 482.3145748704.

The spelling of 112199561 in words is "one hundred twelve million, one hundred ninety-nine thousand, five hundred sixty-one".