18734141 has 2 divisors, whose sum is σ = 18734142. Its totient is φ = 18734140.

The previous prime is 18734129. The next prime is 18734143. The reversal of 18734141 is 14143781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 2493241 = 4030^2 + 1579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18734141 is a prime.

Together with 18734143, 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 (18734143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9367070 + 9367071.

It is an arithmetic number, because the mean of its divisors is an integer number (9367071).

Almost surely, 2^18734141 is an apocalyptic number.

It is an amenable number.

18734141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18734141 is an equidigital number, since it uses as much as digits as its factorization.

18734141 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 18734141 is about 4328.2953919528. The cubic root of 18734141 is about 265.5897202694.

The spelling of 18734141 in words is "eighteen million, seven hundred thirty-four thousand, one hundred forty-one".