183220113 has 4 divisors (see below), whose sum is σ = 244293488. Its totient is φ = 122146740.

The previous prime is 183220109. The next prime is 183220123. The reversal of 183220113 is 311022381.

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.

It is not a de Polignac number, because 183220113 - 2² = 183220109 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 183220113.

It is not an unprimeable number, because it can be changed into a prime (183220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30536683 + ... + 30536688.

It is an arithmetic number, because the mean of its divisors is an integer number (61073372).

Almost surely, 2^183220113 is an apocalyptic number.

It is an amenable number.

183220113 is a deficient number, since it is larger than the sum of its proper divisors (61073375).

183220113 is an equidigital number, since it uses as much as digits as its factorization.

183220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61073374.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 183220113 is about 13535.8824241347. The cubic root of 183220113 is about 567.9686728490.

Adding to 183220113 its reverse (311022381), we get a palindrome (494242494).

It can be divided in two parts, 1832 and 20113, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 183220113 in words is "one hundred eighty-three million, two hundred twenty thousand, one hundred thirteen".