220013245 has 8 divisors (see below), whose sum is σ = 265385016. Its totient is φ = 175097856.

The previous prime is 220013243. The next prime is 220013267. The reversal of 220013245 is 542310022.

It can be written as a sum of positive squares in 4 ways, for example, as 6911641 + 213101604 = 2629^2 + 14598^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220013245 - 2¹ = 220013243 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 (220013243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113032 + ... + 114961.

It is an arithmetic number, because the mean of its divisors is an integer number (33173127).

Almost surely, 2^220013245 is an apocalyptic number.

It is an amenable number.

220013245 is a deficient number, since it is larger than the sum of its proper divisors (45371771).

220013245 is a wasteful number, since it uses less digits than its factorization.

220013245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228191.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 220013245 is about 14832.8434563303. The cubic root of 220013245 is about 603.6931882182.

Adding to 220013245 its reverse (542310022), we get a palindrome (762323267).

The spelling of 220013245 in words is "two hundred twenty million, thirteen thousand, two hundred forty-five".