220142093 has 4 divisors (see below), whose sum is σ = 220508988. Its totient is φ = 219775200.

The previous prime is 220142089. The next prime is 220142137. The reversal of 220142093 is 390241022.

220142093 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: 390241022 = 2 ⋅195120511.

It can be written as a sum of positive squares in 2 ways, for example, as 118091689 + 102050404 = 10867^2 + 10102^2 .

It is a cyclic number.

It is not a de Polignac number, because 220142093 - 2² = 220142089 is a prime.

It is a super-2 number, since 2×220142093² = 96925082220841298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220142033) 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, 182546 + ... + 183747.

It is an arithmetic number, because the mean of its divisors is an integer number (55127247).

Almost surely, 2^220142093 is an apocalyptic number.

It is an amenable number.

220142093 is a deficient number, since it is larger than the sum of its proper divisors (366895).

220142093 is an equidigital number, since it uses as much as digits as its factorization.

220142093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366894.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 220142093 is about 14837.1861550632. The cubic root of 220142093 is about 603.8110136705.

The spelling of 220142093 in words is "two hundred twenty million, one hundred forty-two thousand, ninety-three".