112197138 has 32 divisors (see below), whose sum is σ = 228484800. Its totient is φ = 36723456.

The previous prime is 112197133. The next prime is 112197157. The reversal of 112197138 is 831791211.

It is a junction number, because it is equal to n+sod(n) for n = 112197099 and 112197108.

It is not an unprimeable number, because it can be changed into a prime (112197133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86398 + ... + 87686.

It is an arithmetic number, because the mean of its divisors is an integer number (7140150).

Almost surely, 2^112197138 is an apocalyptic number.

112197138 is an abundant number, since it is smaller than the sum of its proper divisors (116287662).

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

112197138 is a wasteful number, since it uses less digits than its factorization.

112197138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546.

The product of its digits is 3024, while the sum is 33.

The square root of 112197138 is about 10592.3150444084. The cubic root of 112197138 is about 482.3111029120.

The spelling of 112197138 in words is "one hundred twelve million, one hundred ninety-seven thousand, one hundred thirty-eight".