112540121 has 4 divisors (see below), whose sum is σ = 115285044. Its totient is φ = 109795200.

The previous prime is 112540111. The next prime is 112540151. The reversal of 112540121 is 121045211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11256025 + 101284096 = 3355^2 + 10064^2 .

It is a cyclic number.

It is not a de Polignac number, because 112540121 - 2¹⁴ = 112523737 is a prime.

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 112540121.

It is not an unprimeable number, because it can be changed into a prime (112540111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372400 + ... + 1372481.

It is an arithmetic number, because the mean of its divisors is an integer number (28821261).

Almost surely, 2^112540121 is an apocalyptic number.

It is an amenable number.

112540121 is a deficient number, since it is larger than the sum of its proper divisors (2744923).

112540121 is an equidigital number, since it uses as much as digits as its factorization.

112540121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744922.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 112540121 is about 10608.4928712801. The cubic root of 112540121 is about 482.8020727408.

Adding to 112540121 its reverse (121045211), we get a palindrome (233585332).

The spelling of 112540121 in words is "one hundred twelve million, five hundred forty thousand, one hundred twenty-one".