112878617 has 4 divisors (see below), whose sum is σ = 115631796. Its totient is φ = 110125440.

The previous prime is 112878599. The next prime is 112878629. The reversal of 112878617 is 716878211.

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 33686416 + 79192201 = 5804^2 + 8899^2 .

It is a cyclic number.

It is not a de Polignac number, because 112878617 - 2⁶ = 112878553 is a prime.

It is a super-3 number, since 3×112878617³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2753137 = 112878617 / (1 + 1 + 2 + 8 + 7 + 8 + 6 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112878637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376528 + ... + 1376609.

It is an arithmetic number, because the mean of its divisors is an integer number (28907949).

Almost surely, 2^112878617 is an apocalyptic number.

It is an amenable number.

112878617 is a deficient number, since it is larger than the sum of its proper divisors (2753179).

112878617 is an equidigital number, since it uses as much as digits as its factorization.

112878617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753178.

The product of its digits is 37632, while the sum is 41.

The square root of 112878617 is about 10624.4349026195. The cubic root of 112878617 is about 483.2856424870.

The spelling of 112878617 in words is "one hundred twelve million, eight hundred seventy-eight thousand, six hundred seventeen".