112145121 has 16 divisors (see below), whose sum is σ = 181245120. Its totient is φ = 67966560.

The previous prime is 112145093. The next prime is 112145123. The reversal of 112145121 is 121541211.

It is not a de Polignac number, because 112145121 - 2⁷ = 112144993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112145094 and 112145103.

It is not an unprimeable number, because it can be changed into a prime (112145123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188500 + ... + 189093.

It is an arithmetic number, because the mean of its divisors is an integer number (11327820).

Almost surely, 2^112145121 is an apocalyptic number.

112145121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112145121 is a deficient number, since it is larger than the sum of its proper divisors (69099999).

112145121 is a wasteful number, since it uses less digits than its factorization.

112145121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377613 (or 377607 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 112145121 is about 10589.8593475079. The cubic root of 112145121 is about 482.2365547988.

Adding to 112145121 its reverse (121541211), we get a palindrome (233686332).

The spelling of 112145121 in words is "one hundred twelve million, one hundred forty-five thousand, one hundred twenty-one".