5202309 has 8 divisors (see below), whose sum is σ = 7927360. Its totient is φ = 2972736.

The previous prime is 5202299. The next prime is 5202331. The reversal of 5202309 is 9032025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5202309 - 2⁴ = 5202293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 247729 = 5202309 / (5 + 2 + 0 + 2 + 3 + 0 + 9).

It is a Curzon number.

5202309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5202359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123844 + ... + 123885.

It is an arithmetic number, because the mean of its divisors is an integer number (990920).

Almost surely, 2^5202309 is an apocalyptic number.

It is an amenable number.

5202309 is a deficient number, since it is larger than the sum of its proper divisors (2725051).

5202309 is a wasteful number, since it uses less digits than its factorization.

5202309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247739.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 5202309 is about 2280.8570757503. The cubic root of 5202309 is about 173.2734601723.

The spelling of 5202309 in words is "five million, two hundred two thousand, three hundred nine".