2253309 has 4 divisors (see below), whose sum is σ = 3004416. Its totient is φ = 1502204.

The previous prime is 2253289. The next prime is 2253311. The reversal of 2253309 is 9033522.

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 2253309 - 2¹² = 2249213 is a prime.

It is a D-number.

2253309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253389) 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, 375549 + ... + 375554.

It is an arithmetic number, because the mean of its divisors is an integer number (751104).

2^2253309 is an apocalyptic number.

It is an amenable number.

2253309 is a deficient number, since it is larger than the sum of its proper divisors (751107).

2253309 is an equidigital number, since it uses as much as digits as its factorization.

2253309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751106.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 2253309 is about 1501.1025947616. The cubic root of 2253309 is about 131.1012755291.

The spelling of 2253309 in words is "two million, two hundred fifty-three thousand, three hundred nine".