112989815 has 8 divisors (see below), whose sum is σ = 136031280. Its totient is φ = 90096192.

The previous prime is 112989781. The next prime is 112989817. The reversal of 112989815 is 518989211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112989815 - 2⁸ = 112989559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112989817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35270 + ... + 38339.

It is an arithmetic number, because the mean of its divisors is an integer number (17003910).

Almost surely, 2^112989815 is an apocalyptic number.

112989815 is a deficient number, since it is larger than the sum of its proper divisors (23041465).

112989815 is an equidigital number, since it uses as much as digits as its factorization.

112989815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73921.

The product of its digits is 51840, while the sum is 44.

The square root of 112989815 is about 10629.6667398371. Note that the first 3 decimals coincide. The cubic root of 112989815 is about 483.4442871184. Note that the first 3 decimals are identical.

The spelling of 112989815 in words is "one hundred twelve million, nine hundred eighty-nine thousand, eight hundred fifteen".