19567241 has 2 divisors, whose sum is σ = 19567242. Its totient is φ = 19567240.

The previous prime is 19567217. The next prime is 19567243. The reversal of 19567241 is 14276591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19404025 + 163216 = 4405^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 19567241 - 2²² = 15372937 is a prime.

It is a Sophie Germain prime.

Together with 19567243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19567243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9783620 + 9783621.

It is an arithmetic number, because the mean of its divisors is an integer number (9783621).

Almost surely, 2^19567241 is an apocalyptic number.

It is an amenable number.

19567241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19567241 is an equidigital number, since it uses as much as digits as its factorization.

19567241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 19567241 is about 4423.4874250980. The cubic root of 19567241 is about 269.4696539688.

The spelling of 19567241 in words is "nineteen million, five hundred sixty-seven thousand, two hundred forty-one".