112137581 has 16 divisors (see below), whose sum is σ = 119778048. Its totient is φ = 104755200.

The previous prime is 112137547. The next prime is 112137587. The reversal of 112137581 is 185731211.

It is a cyclic number.

It is not a de Polignac number, because 112137581 - 2⁶ = 112137517 is a prime.

It is a super-2 number, since 2×112137581² = 25149674145063122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112137587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360416 + ... + 360726.

It is an arithmetic number, because the mean of its divisors is an integer number (7486128).

Almost surely, 2^112137581 is an apocalyptic number.

It is an amenable number.

112137581 is a deficient number, since it is larger than the sum of its proper divisors (7640467).

112137581 is a wasteful number, since it uses less digits than its factorization.

112137581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 1680, while the sum is 29.

The square root of 112137581 is about 10589.5033405727. The cubic root of 112137581 is about 482.2257469423.

Adding to 112137581 its reverse (185731211), we get a palindrome (297868792).

The spelling of 112137581 in words is "one hundred twelve million, one hundred thirty-seven thousand, five hundred eighty-one".