220447133 has 4 divisors (see below), whose sum is σ = 220483488. Its totient is φ = 220410780.

The previous prime is 220447121. The next prime is 220447141. The reversal of 220447133 is 331744022.

220447133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 331744022 = 2 ⋅165872011.

It is a cyclic number.

It is not a de Polignac number, because 220447133 - 2¹² = 220443037 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 (220447033) 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, 6641 + ... + 22022.

It is an arithmetic number, because the mean of its divisors is an integer number (55120872).

Almost surely, 2^220447133 is an apocalyptic number.

It is an amenable number.

220447133 is a deficient number, since it is larger than the sum of its proper divisors (36355).

220447133 is an equidigital number, since it uses as much as digits as its factorization.

220447133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36354.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 220447133 is about 14847.4621737184. The cubic root of 220447133 is about 604.0897752979.

The spelling of 220447133 in words is "two hundred twenty million, four hundred forty-seven thousand, one hundred thirty-three".