2302009 has 2 divisors, whose sum is σ = 2302010. Its totient is φ = 2302008.

The previous prime is 2301997. The next prime is 2302019. The reversal of 2302009 is 9002032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 944784 = 1165^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 2302009 - 2⁵ = 2301977 is a prime.

2302009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2301983 and 2302001.

It is not a weakly prime, because it can be changed into another prime (2302019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151004 + 1151005.

It is an arithmetic number, because the mean of its divisors is an integer number (1151005).

2^2302009 is an apocalyptic number.

It is an amenable number.

2302009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2302009 is an equidigital number, since it uses as much as digits as its factorization.

2302009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2302009 is about 1517.2372919224. The cubic root of 2302009 is about 132.0390342165.

The spelling of 2302009 in words is "two million, three hundred two thousand, nine".