112115540 has 12 divisors (see below), whose sum is σ = 235442676. Its totient is φ = 44846208.

The previous prime is 112115533. The next prime is 112115543. The reversal of 112115540 is 45511211.

It can be written as a sum of positive squares in 2 ways, for example, as 55294096 + 56821444 = 7436^2 + 7538^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5605777 = 112115540 / (1 + 1 + 2 + 1 + 1 + 5 + 5 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112115543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802869 + ... + 2802908.

It is an arithmetic number, because the mean of its divisors is an integer number (19620223).

Almost surely, 2^112115540 is an apocalyptic number.

112115540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112115540 is an abundant number, since it is smaller than the sum of its proper divisors (123327136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112115540 is a wasteful number, since it uses less digits than its factorization.

112115540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605786 (or 5605784 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 112115540 is about 10588.4625890636. The cubic root of 112115540 is about 482.1941505348.

Adding to 112115540 its reverse (45511211), we get a palindrome (157626751).

It can be divided in two parts, 1121 and 15540, that added together give a palindrome (16661).

The spelling of 112115540 in words is "one hundred twelve million, one hundred fifteen thousand, five hundred forty".