18252307 has 2 divisors, whose sum is σ = 18252308. Its totient is φ = 18252306.

The previous prime is 18252301. The next prime is 18252329. The reversal of 18252307 is 70325281.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18252307 is a prime.

It is not a weakly prime, because it can be changed into another prime (18252301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9126153 + 9126154.

It is an arithmetic number, because the mean of its divisors is an integer number (9126154).

Almost surely, 2^18252307 is an apocalyptic number.

18252307 is a deficient number, since it is larger than the sum of its proper divisors (1).

18252307 is an equidigital number, since it uses as much as digits as its factorization.

18252307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18252307 is about 4272.2718780527. The cubic root of 18252307 is about 263.2929648457.

Adding to 18252307 its reverse (70325281), we get a palindrome (88577588).

The spelling of 18252307 in words is "eighteen million, two hundred fifty-two thousand, three hundred seven".