113220989 has 8 divisors (see below), whose sum is σ = 129629760. Its totient is φ = 96870816.

The previous prime is 113220971. The next prime is 113221001. The reversal of 113220989 is 989022311.

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

It is not a de Polignac number, because 113220989 - 2⁸ = 113220733 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 (113220929) 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, 10424 + ... + 18305.

It is an arithmetic number, because the mean of its divisors is an integer number (16203720).

Almost surely, 2^113220989 is an apocalyptic number.

It is an amenable number.

113220989 is a deficient number, since it is larger than the sum of its proper divisors (16408771).

113220989 is an equidigital number, since it uses as much as digits as its factorization.

113220989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29299.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 113220989 is about 10640.5351839087. The cubic root of 113220989 is about 483.7737670131.

The spelling of 113220989 in words is "one hundred thirteen million, two hundred twenty thousand, nine hundred eighty-nine".