220545130 has 16 divisors (see below), whose sum is σ = 427518504. Its totient is φ = 81432000.

The previous prime is 220545113. The next prime is 220545139. The reversal of 220545130 is 31545022.

220545130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60699681 + 159845449 = 7791^2 + 12643^2 .

It is not an unprimeable number, because it can be changed into a prime (220545139) 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 7 ways as a sum of consecutive naturals, for example, 848121 + ... + 848380.

Almost surely, 2^220545130 is an apocalyptic number.

220545130 is a deficient number, since it is larger than the sum of its proper divisors (206973374).

220545130 is a wasteful number, since it uses less digits than its factorization.

220545130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696521.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 220545130 is about 14850.7619333151. The cubic root of 220545130 is about 604.1792755408.

The spelling of 220545130 in words is "two hundred twenty million, five hundred forty-five thousand, one hundred thirty".