2220139 has 4 divisors (see below), whose sum is σ = 2267424. Its totient is φ = 2172856.

The previous prime is 2220089. The next prime is 2220151. The reversal of 2220139 is 9310222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9310222 = 2 ⋅4655111.

It is a cyclic number.

It is not a de Polignac number, because 2220139 - 2¹¹ = 2218091 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 (2220199) 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, 23572 + ... + 23665.

It is an arithmetic number, because the mean of its divisors is an integer number (566856).

2^2220139 is an apocalyptic number.

2220139 is a deficient number, since it is larger than the sum of its proper divisors (47285).

2220139 is an equidigital number, since it uses as much as digits as its factorization.

2220139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47284.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2220139 is about 1490.0130871908. The cubic root of 2220139 is about 130.4547975936.

The spelling of 2220139 in words is "two million, two hundred twenty thousand, one hundred thirty-nine".