220503045 has 32 divisors (see below), whose sum is σ = 404980992. Its totient is φ = 100357632.

The previous prime is 220502993. The next prime is 220503061. The reversal of 220503045 is 540305022.

It is not a de Polignac number, because 220503045 - 2⁹ = 220502533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 19959 + ... + 28971.

It is an arithmetic number, because the mean of its divisors is an integer number (12655656).

Almost surely, 2^220503045 is an apocalyptic number.

It is an amenable number.

220503045 is a deficient number, since it is larger than the sum of its proper divisors (184477947).

220503045 is a wasteful number, since it uses less digits than its factorization.

220503045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9261.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 220503045 is about 14849.3449350468. The cubic root of 220503045 is about 604.1408427382.

Adding to 220503045 its reverse (540305022), we get a palindrome (760808067).

The spelling of 220503045 in words is "two hundred twenty million, five hundred three thousand, forty-five".