112112817 has 4 divisors (see below), whose sum is σ = 149483760. Its totient is φ = 74741876.

The previous prime is 112112797. The next prime is 112112827. The reversal of 112112817 is 718211211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112112817 - 2¹⁶ = 112047281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112112827) 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, 18685467 + ... + 18685472.

It is an arithmetic number, because the mean of its divisors is an integer number (37370940).

Almost surely, 2^112112817 is an apocalyptic number.

It is an amenable number.

112112817 is a deficient number, since it is larger than the sum of its proper divisors (37370943).

112112817 is an equidigital number, since it uses as much as digits as its factorization.

112112817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37370942.

The product of its digits is 224, while the sum is 24.

The square root of 112112817 is about 10588.3340049320. The cubic root of 112112817 is about 482.1902467486.

It can be divided in two parts, 11211 and 2817, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 112112817 in words is "one hundred twelve million, one hundred twelve thousand, eight hundred seventeen".