18241607 has 2 divisors, whose sum is σ = 18241608. Its totient is φ = 18241606.

The previous prime is 18241591. The next prime is 18241627. The reversal of 18241607 is 70614281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18241607 - 2⁴ = 18241591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18241607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18241627) 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, 9120803 + 9120804.

It is an arithmetic number, because the mean of its divisors is an integer number (9120804).

Almost surely, 2^18241607 is an apocalyptic number.

18241607 is a deficient number, since it is larger than the sum of its proper divisors (1).

18241607 is an equidigital number, since it uses as much as digits as its factorization.

18241607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 18241607 is about 4271.0194333438. The cubic root of 18241607 is about 263.2415049505.

Adding to 18241607 its reverse (70614281), we get a palindrome (88855888).

The spelling of 18241607 in words is "eighteen million, two hundred forty-one thousand, six hundred seven".