220142847 has 8 divisors (see below), whose sum is σ = 293618944. Its totient is φ = 146714328.

The previous prime is 220142837. The next prime is 220142849. The reversal of 220142847 is 748241022.

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

It is not a de Polignac number, because 220142847 - 2⁷ = 220142719 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 (220142849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858 + ... + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (36702368).

Almost surely, 2^220142847 is an apocalyptic number.

220142847 is a deficient number, since it is larger than the sum of its proper divisors (73476097).

220142847 is a wasteful number, since it uses less digits than its factorization.

220142847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23789.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 220142847 is about 14837.2115641720. The cubic root of 220142847 is about 603.8117030328.

Adding to 220142847 its reverse (748241022), we get a palindrome (968383869).

The spelling of 220142847 in words is "two hundred twenty million, one hundred forty-two thousand, eight hundred forty-seven".