112813181 has 8 divisors (see below), whose sum is σ = 124454904. Its totient is φ = 101594880.

The previous prime is 112813177. The next prime is 112813187. The reversal of 112813181 is 181318211.

It can be written as a sum of positive squares in 4 ways, for example, as 3422500 + 109390681 = 1850^2 + 10459^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112813181 - 2² = 112813177 is a prime.

It is a super-2 number, since 2×112813181² = 25453627614677522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112813181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112813187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105296 + ... + 106361.

It is an arithmetic number, because the mean of its divisors is an integer number (15556863).

Almost surely, 2^112813181 is an apocalyptic number.

It is an amenable number.

112813181 is a deficient number, since it is larger than the sum of its proper divisors (11641723).

112813181 is a wasteful number, since it uses less digits than its factorization.

112813181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211711.

The product of its digits is 384, while the sum is 26.

The square root of 112813181 is about 10621.3549512292. The cubic root of 112813181 is about 483.1922371607.

The spelling of 112813181 in words is "one hundred twelve million, eight hundred thirteen thousand, one hundred eighty-one".