112499161 has 2 divisors, whose sum is σ = 112499162. Its totient is φ = 112499160.

The previous prime is 112499159. The next prime is 112499197. The reversal of 112499161 is 161994211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93489561 + 19009600 = 9669^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 112499161 - 2¹ = 112499159 is a prime.

It is a super-2 number, since 2×112499161² = 25312122451407842, which contains 22 as substring.

Together with 112499159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112499111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56249580 + 56249581.

It is an arithmetic number, because the mean of its divisors is an integer number (56249581).

Almost surely, 2^112499161 is an apocalyptic number.

It is an amenable number.

112499161 is a deficient number, since it is larger than the sum of its proper divisors (1).

112499161 is an equidigital number, since it uses as much as digits as its factorization.

112499161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 112499161 is about 10606.5621668852. The cubic root of 112499161 is about 482.7434922323.

The spelling of 112499161 in words is "one hundred twelve million, four hundred ninety-nine thousand, one hundred sixty-one".