19210241 has 2 divisors, whose sum is σ = 19210242. Its totient is φ = 19210240.

The previous prime is 19210237. The next prime is 19210249. The reversal of 19210241 is 14201291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 6105841 = 3620^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 19210241 - 2² = 19210237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19210249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9605120 + 9605121.

It is an arithmetic number, because the mean of its divisors is an integer number (9605121).

It is a Proth number, since it is equal to 2345 ⋅ 2¹³ + 1 and 2345 < 2¹³.

Almost surely, 2^19210241 is an apocalyptic number.

It is an amenable number.

19210241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19210241 is an equidigital number, since it uses as much as digits as its factorization.

19210241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 19210241 is about 4382.9488931540. The cubic root of 19210241 is about 267.8207803405.

The spelling of 19210241 in words is "nineteen million, two hundred ten thousand, two hundred forty-one".