220700245 has 4 divisors (see below), whose sum is σ = 264840300. Its totient is φ = 176560192.

The previous prime is 220700231. The next prime is 220700267. The reversal of 220700245 is 542007022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 152917956 + 67782289 = 12366^2 + 8233^2 .

It is a cyclic number.

It is not a de Polignac number, because 220700245 - 2⁵ = 220700213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22070020 + ... + 22070029.

It is an arithmetic number, because the mean of its divisors is an integer number (66210075).

Almost surely, 2^220700245 is an apocalyptic number.

It is an amenable number.

220700245 is a deficient number, since it is larger than the sum of its proper divisors (44140055).

220700245 is an equidigital number, since it uses as much as digits as its factorization.

220700245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44140054.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 220700245 is about 14855.9834746812. The cubic root of 220700245 is about 604.3208872307.

Adding to 220700245 its reverse (542007022), we get a palindrome (762707267).

The spelling of 220700245 in words is "two hundred twenty million, seven hundred thousand, two hundred forty-five".