220142147 has 4 divisors (see below), whose sum is σ = 220618080. Its totient is φ = 219666216.

The previous prime is 220142141. The next prime is 220142201. The reversal of 220142147 is 741241022.

220142147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741241022 = 2 ⋅370620511.

It is a cyclic number.

It is not a de Polignac number, because 220142147 - 2²⁰ = 219093571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220142141) 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, 237272 + ... + 238197.

It is an arithmetic number, because the mean of its divisors is an integer number (55154520).

Almost surely, 2^220142147 is an apocalyptic number.

220142147 is a deficient number, since it is larger than the sum of its proper divisors (475933).

220142147 is an equidigital number, since it uses as much as digits as its factorization.

220142147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475932.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 220142147 is about 14837.1879748152. The cubic root of 220142147 is about 603.8110630413.

Adding to 220142147 its reverse (741241022), we get a palindrome (961383169).

The spelling of 220142147 in words is "two hundred twenty million, one hundred forty-two thousand, one hundred forty-seven".