112878013 has 4 divisors (see below), whose sum is σ = 113001760. Its totient is φ = 112754268.

The previous prime is 112877987. The next prime is 112878019. The reversal of 112878013 is 310878211.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310878211 = 7 ⋅44411173.

It is a cyclic number.

It is not a de Polignac number, because 112878013 - 2¹³ = 112869821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112878019) 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, 60495 + ... + 62332.

It is an arithmetic number, because the mean of its divisors is an integer number (28250440).

Almost surely, 2^112878013 is an apocalyptic number.

It is an amenable number.

112878013 is a deficient number, since it is larger than the sum of its proper divisors (123747).

112878013 is an equidigital number, since it uses as much as digits as its factorization.

112878013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123746.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 112878013 is about 10624.4064775403. The cubic root of 112878013 is about 483.2847804842.

The spelling of 112878013 in words is "one hundred twelve million, eight hundred seventy-eight thousand, thirteen".