18252329 has 2 divisors, whose sum is σ = 18252330. Its totient is φ = 18252328.

The previous prime is 18252307. The next prime is 18252337. The reversal of 18252329 is 92325281.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17305600 + 946729 = 4160^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 18252329 - 2¹² = 18248233 is a prime.

It is a Chen prime.

It is equal to p_1166378 and since 18252329 and 1166378 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 18252295 and 18252304.

It is not a weakly prime, because it can be changed into another prime (18252379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9126164 + 9126165.

It is an arithmetic number, because the mean of its divisors is an integer number (9126165).

Almost surely, 2^18252329 is an apocalyptic number.

It is an amenable number.

18252329 is a deficient number, since it is larger than the sum of its proper divisors (1).

18252329 is an equidigital number, since it uses as much as digits as its factorization.

18252329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 18252329 is about 4272.2744527944. The cubic root of 18252329 is about 263.2930706304.

It can be divided in two parts, 18252 and 329, that added together give a palindrome (18581).

The spelling of 18252329 in words is "eighteen million, two hundred fifty-two thousand, three hundred twenty-nine".