19612193 has 2 divisors, whose sum is σ = 19612194. Its totient is φ = 19612192.

The previous prime is 19612157. The next prime is 19612223. The reversal of 19612193 is 39121691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13890529 + 5721664 = 3727^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 19612193 - 2¹² = 19608097 is a prime.

It is a super-2 number, since 2×19612193² = 769276228538498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19612793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9806096 + 9806097.

It is an arithmetic number, because the mean of its divisors is an integer number (9806097).

Almost surely, 2^19612193 is an apocalyptic number.

It is an amenable number.

19612193 is a deficient number, since it is larger than the sum of its proper divisors (1).

19612193 is an equidigital number, since it uses as much as digits as its factorization.

19612193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 32.

The square root of 19612193 is about 4428.5655691205. The cubic root of 19612193 is about 269.6758478446.

The spelling of 19612193 in words is "nineteen million, six hundred twelve thousand, one hundred ninety-three".