2022509 has 4 divisors (see below), whose sum is σ = 2038080. Its totient is φ = 2006940.

The previous prime is 2022497. The next prime is 2022539. The reversal of 2022509 is 9052202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2022509 - 2⁸ = 2022253 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 (2022539) 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, 7589 + ... + 7850.

It is an arithmetic number, because the mean of its divisors is an integer number (509520).

2^2022509 is an apocalyptic number.

It is an amenable number.

2022509 is a deficient number, since it is larger than the sum of its proper divisors (15571).

2022509 is a wasteful number, since it uses less digits than its factorization.

2022509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15570.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2022509 is about 1422.1494295608. The cubic root of 2022509 is about 126.4630021940.

The spelling of 2022509 in words is "two million, twenty-two thousand, five hundred nine".