19671241 has 2 divisors, whose sum is σ = 19671242. Its totient is φ = 19671240.

The previous prime is 19671229. The next prime is 19671247. The reversal of 19671241 is 14217691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 355216 = 4395^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 19671241 - 2⁵ = 19671209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19671247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9835620 + 9835621.

It is an arithmetic number, because the mean of its divisors is an integer number (9835621).

Almost surely, 2^19671241 is an apocalyptic number.

It is an amenable number.

19671241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19671241 is an equidigital number, since it uses as much as digits as its factorization.

19671241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 19671241 is about 4435.2272771528. The cubic root of 19671241 is about 269.9462215708.

The spelling of 19671241 in words is "nineteen million, six hundred seventy-one thousand, two hundred forty-one".