220142087 has 4 divisors (see below), whose sum is σ = 240155016. Its totient is φ = 200129160.

The previous prime is 220142081. The next prime is 220142089. The reversal of 220142087 is 780241022.

220142087 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.

It is not a de Polignac number, because 220142087 - 2⁴ = 220142071 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 (220142081) 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, 10006448 + ... + 10006469.

It is an arithmetic number, because the mean of its divisors is an integer number (60038754).

Almost surely, 2^220142087 is an apocalyptic number.

220142087 is a deficient number, since it is larger than the sum of its proper divisors (20012929).

220142087 is a wasteful number, since it uses less digits than its factorization.

220142087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20012928.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 220142087 is about 14837.1859528686. The cubic root of 220142087 is about 603.8110081849.

The spelling of 220142087 in words is "two hundred twenty million, one hundred forty-two thousand, eighty-seven".