19005241 has 2 divisors, whose sum is σ = 19005242. Its totient is φ = 19005240.

The previous prime is 19005223. The next prime is 19005253. The reversal of 19005241 is 14250091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15840400 + 3164841 = 3980^2 + 1779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19005241 is a prime.

It is a super-2 number, since 2×19005241² = 722398370936162, which contains 22 as substring.

It is a Chen prime.

It is the 4360-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (19005211) by changing a digit.

It is a nontrivial repunit in base 4359.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9502620 + 9502621.

It is an arithmetic number, because the mean of its divisors is an integer number (9502621).

Almost surely, 2^19005241 is an apocalyptic number.

It is an amenable number.

19005241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19005241 is an equidigital number, since it uses as much as digits as its factorization.

19005241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 19005241 is about 4359.5000860190. The cubic root of 19005241 is about 266.8646978675.

The spelling of 19005241 in words is "nineteen million, five thousand, two hundred forty-one".