220287147 has 24 divisors (see below), whose sum is σ = 306717840. Its totient is φ = 140616000.

The previous prime is 220287143. The next prime is 220287149. The reversal of 220287147 is 741782022.

It is not a de Polignac number, because 220287147 - 2² = 220287143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220287143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313897 + ... + 314597.

It is an arithmetic number, because the mean of its divisors is an integer number (12779910).

Almost surely, 2^220287147 is an apocalyptic number.

220287147 is a deficient number, since it is larger than the sum of its proper divisors (86430693).

220287147 is a wasteful number, since it uses less digits than its factorization.

220287147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 220287147 is about 14842.0735411195. The cubic root of 220287147 is about 603.9436037501.

The spelling of 220287147 in words is "two hundred twenty million, two hundred eighty-seven thousand, one hundred forty-seven".