112978529 has 4 divisors (see below), whose sum is σ = 113147076. Its totient is φ = 112809984.

The previous prime is 112978517. The next prime is 112978573. The reversal of 112978529 is 925879211.

It is a happy number.

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 31618129 + 81360400 = 5623^2 + 9020^2 .

It is a cyclic number.

It is not a de Polignac number, because 112978529 - 2⁴ = 112978513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112978529.

It is not an unprimeable number, because it can be changed into a prime (112978589) 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, 83264 + ... + 84609.

It is an arithmetic number, because the mean of its divisors is an integer number (28286769).

Almost surely, 2^112978529 is an apocalyptic number.

It is an amenable number.

112978529 is a deficient number, since it is larger than the sum of its proper divisors (168547).

112978529 is an equidigital number, since it uses as much as digits as its factorization.

112978529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168546.

The product of its digits is 90720, while the sum is 44.

The square root of 112978529 is about 10629.1358538688. The cubic root of 112978529 is about 483.4281902873.

The spelling of 112978529 in words is "one hundred twelve million, nine hundred seventy-eight thousand, five hundred twenty-nine".