220581093 has 16 divisors (see below), whose sum is σ = 297271296. Its totient is φ = 145479600.

The previous prime is 220581091. The next prime is 220581113. The reversal of 220581093 is 390185022.

It is a happy number.

It is not a de Polignac number, because 220581093 - 2¹ = 220581091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220581093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220581091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191068 + ... + 192218.

It is an arithmetic number, because the mean of its divisors is an integer number (18579456).

Almost surely, 2^220581093 is an apocalyptic number.

It is an amenable number.

220581093 is a deficient number, since it is larger than the sum of its proper divisors (76690203).

220581093 is a wasteful number, since it uses less digits than its factorization.

220581093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 220581093 is about 14851.9726972547. The cubic root of 220581093 is about 604.2121137455.

The spelling of 220581093 in words is "two hundred twenty million, five hundred eighty-one thousand, ninety-three".