18025841 has 2 divisors, whose sum is σ = 18025842. Its totient is φ = 18025840.

The previous prime is 18025823. The next prime is 18025853. The reversal of 18025841 is 14852081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 5740816 = 3505^2 + 2396^2 .

It is a cyclic number.

It is not a de Polignac number, because 18025841 - 2²² = 13831537 is a prime.

It is equal to p_1152893 and since 18025841 and 1152893 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (18025741) 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 as a sum of consecutive naturals, namely, 9012920 + 9012921.

It is an arithmetic number, because the mean of its divisors is an integer number (9012921).

Almost surely, 2^18025841 is an apocalyptic number.

It is an amenable number.

18025841 is a deficient number, since it is larger than the sum of its proper divisors (1).

18025841 is an equidigital number, since it uses as much as digits as its factorization.

18025841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 18025841 is about 4245.6849859593. The cubic root of 18025841 is about 262.1994916365.

The spelling of 18025841 in words is "eighteen million, twenty-five thousand, eight hundred forty-one".