112251913 has 4 divisors (see below), whose sum is σ = 112651668. Its totient is φ = 111852160.

The previous prime is 112251911. The next prime is 112251941. The reversal of 112251913 is 319152211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319152211 = 7 ⋅45593173.

It can be written as a sum of positive squares in 2 ways, for example, as 101545929 + 10705984 = 10077^2 + 3272^2 .

It is a cyclic number.

It is not a de Polignac number, because 112251913 - 2¹ = 112251911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112251911) 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, 199456 + ... + 200017.

It is an arithmetic number, because the mean of its divisors is an integer number (28162917).

Almost surely, 2^112251913 is an apocalyptic number.

It is an amenable number.

112251913 is a deficient number, since it is larger than the sum of its proper divisors (399755).

112251913 is an equidigital number, since it uses as much as digits as its factorization.

112251913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399754.

The product of its digits is 540, while the sum is 25.

The square root of 112251913 is about 10594.9003298757. The cubic root of 112251913 is about 482.3895787480.

It can be divided in two parts, 1122 and 51913, that added together give a palindrome (53035).

The spelling of 112251913 in words is "one hundred twelve million, two hundred fifty-one thousand, nine hundred thirteen".