220545411 has 4 divisors (see below), whose sum is σ = 294060552. Its totient is φ = 147030272.

The previous prime is 220545401. The next prime is 220545431. The reversal of 220545411 is 114545022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220545411 - 2¹⁴ = 220529027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220545401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36757566 + ... + 36757571.

It is an arithmetic number, because the mean of its divisors is an integer number (73515138).

Almost surely, 2^220545411 is an apocalyptic number.

220545411 is a deficient number, since it is larger than the sum of its proper divisors (73515141).

220545411 is an equidigital number, since it uses as much as digits as its factorization.

220545411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73515140.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 220545411 is about 14850.7713941061. The cubic root of 220545411 is about 604.1795321388.

The spelling of 220545411 in words is "two hundred twenty million, five hundred forty-five thousand, four hundred eleven".