112909140 has 60 divisors (see below), whose sum is σ = 354205236. Its totient is φ = 30108672.

The previous prime is 112909127. The next prime is 112909141. The reversal of 112909140 is 41909211.

It can be written as a sum of positive squares in 2 ways, for example, as 89984196 + 22924944 = 9486^2 + 4788^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112909141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33229 + ... + 36468.

Almost surely, 2^112909140 is an apocalyptic number.

112909140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112909140 is an abundant number, since it is smaller than the sum of its proper divisors (241296096).

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

112909140 is a wasteful number, since it uses less digits than its factorization.

112909140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69718 (or 69707 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 112909140 is about 10625.8712583957. The cubic root of 112909140 is about 483.3291995947.

The spelling of 112909140 in words is "one hundred twelve million, nine hundred nine thousand, one hundred forty".