220381543 has 8 divisors (see below), whose sum is σ = 225282240. Its totient is φ = 215489760.

The previous prime is 220381537. The next prime is 220381547. The reversal of 220381543 is 345183022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220381543 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 (220381547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82773 + ... + 85393.

It is an arithmetic number, because the mean of its divisors is an integer number (28160280).

Almost surely, 2^220381543 is an apocalyptic number.

220381543 is a deficient number, since it is larger than the sum of its proper divisors (4900697).

220381543 is a wasteful number, since it uses less digits than its factorization.

220381543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 220381543 is about 14845.2532144117. The cubic root of 220381543 is about 604.0298574118.

The spelling of 220381543 in words is "two hundred twenty million, three hundred eighty-one thousand, five hundred forty-three".