18413741 has 2 divisors, whose sum is σ = 18413742. Its totient is φ = 18413740.

The previous prime is 18413719. The next prime is 18413743. The reversal of 18413741 is 14731481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 5244100 = 3629^2 + 2290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18413741 is a prime.

Together with 18413743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18413743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9206870 + 9206871.

It is an arithmetic number, because the mean of its divisors is an integer number (9206871).

Almost surely, 2^18413741 is an apocalyptic number.

It is an amenable number.

18413741 is a deficient number, since it is larger than the sum of its proper divisors (1).

18413741 is an equidigital number, since it uses as much as digits as its factorization.

18413741 is an odious number, because the sum of its binary digits is odd.

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

The square root of 18413741 is about 4291.1235125547. The cubic root of 18413741 is about 264.0669261375.

The spelling of 18413741 in words is "eighteen million, four hundred thirteen thousand, seven hundred forty-one".