19481243 has 8 divisors (see below), whose sum is σ = 20341200. Its totient is φ = 18633888.

The previous prime is 19481239. The next prime is 19481281. The reversal of 19481243 is 34218491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19481243 - 2² = 19481239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19481443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (2542650).

Almost surely, 2^19481243 is an apocalyptic number.

19481243 is a deficient number, since it is larger than the sum of its proper divisors (859957).

19481243 is a wasteful number, since it uses less digits than its factorization.

19481243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301.

The product of its digits is 6912, while the sum is 32.

The square root of 19481243 is about 4413.7561101629. The cubic root of 19481243 is about 269.0743012783.

The spelling of 19481243 in words is "nineteen million, four hundred eighty-one thousand, two hundred forty-three".