220281079 has 4 divisors (see below), whose sum is σ = 231874840. Its totient is φ = 208687320.

The previous prime is 220281049. The next prime is 220281109. The reversal of 220281079 is 970182022.

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

It is an interprime number because it is at equal distance from previous prime (220281049) and next prime (220281109).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220281079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220281079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220281029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796852 + ... + 5796889.

It is an arithmetic number, because the mean of its divisors is an integer number (57968710).

Almost surely, 2^220281079 is an apocalyptic number.

220281079 is a deficient number, since it is larger than the sum of its proper divisors (11593761).

220281079 is a wasteful number, since it uses less digits than its factorization.

220281079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593760.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 220281079 is about 14841.8691208352. The cubic root of 220281079 is about 603.9380583162.

The spelling of 220281079 in words is "two hundred twenty million, two hundred eighty-one thousand, seventy-nine".