112115720 has 16 divisors (see below), whose sum is σ = 252260460. Its totient is φ = 44846272.

The previous prime is 112115719. The next prime is 112115737. The reversal of 112115720 is 27511211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103103716 + 9012004 = 10154^2 + 3002^2 .

It is a super-2 number, since 2×112115720² = 25139869342236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 112115692 and 112115701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401407 + ... + 1401486.

Almost surely, 2^112115720 is an apocalyptic number.

112115720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112115720 is an abundant number, since it is smaller than the sum of its proper divisors (140144740).

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

112115720 is a wasteful number, since it uses less digits than its factorization.

112115720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802904 (or 2802900 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 112115720 is about 10588.4710888778. The cubic root of 112115720 is about 482.1944085867.

Adding to 112115720 its reverse (27511211), we get a palindrome (139626931).

The spelling of 112115720 in words is "one hundred twelve million, one hundred fifteen thousand, seven hundred twenty".