112997158591 has 4 divisors (see below), whose sum is σ = 113014335384. Its totient is φ = 112979981800.

The previous prime is 112997158531. The next prime is 112997158601. The reversal of 112997158591 is 195851799211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 195851799211 = 11717 ⋅16715183.

It is a cyclic number.

It is not a de Polignac number, because 112997158591 - 2¹¹ = 112997156543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112997158531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8578525 + ... + 8591686.

It is an arithmetic number, because the mean of its divisors is an integer number (28253583846).

Almost surely, 2^112997158591 is an apocalyptic number.

112997158591 is a deficient number, since it is larger than the sum of its proper divisors (17176793).

112997158591 is an equidigital number, since it uses as much as digits as its factorization.

112997158591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17176792.

The product of its digits is 2041200, while the sum is 58.

The spelling of 112997158591 in words is "one hundred twelve billion, nine hundred ninety-seven million, one hundred fifty-eight thousand, five hundred ninety-one".