112215940 has 12 divisors (see below), whose sum is σ = 235653516. Its totient is φ = 44886368.

The previous prime is 112215937. The next prime is 112215947. The reversal of 112215940 is 49512211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74097664 + 38118276 = 8608^2 + 6174^2 .

It is not an unprimeable number, because it can be changed into a prime (112215947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805379 + ... + 2805418.

It is an arithmetic number, because the mean of its divisors is an integer number (19637793).

Almost surely, 2^112215940 is an apocalyptic number.

112215940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112215940 is an abundant number, since it is smaller than the sum of its proper divisors (123437576).

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

112215940 is a wasteful number, since it uses less digits than its factorization.

112215940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610806 (or 5610804 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 112215940 is about 10593.2025374766. The cubic root of 112215940 is about 482.3380433105.

It can be divided in two parts, 11221 and 5940, that added together give a square (17161 = 131²).

The spelling of 112215940 in words is "one hundred twelve million, two hundred fifteen thousand, nine hundred forty".