19049983 has 2 divisors, whose sum is σ = 19049984. Its totient is φ = 19049982.

The previous prime is 19049977. The next prime is 19050001. The reversal of 19049983 is 38994091.

It is a weak prime.

It is an emirp because it is prime and its reverse (38994091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19049983 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19049923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9524991 + 9524992.

It is an arithmetic number, because the mean of its divisors is an integer number (9524992).

Almost surely, 2^19049983 is an apocalyptic number.

19049983 is a deficient number, since it is larger than the sum of its proper divisors (1).

19049983 is an equidigital number, since it uses as much as digits as its factorization.

19049983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 19049983 is about 4364.6286210856. The cubic root of 19049983 is about 267.0739507225.

The spelling of 19049983 in words is "nineteen million, forty-nine thousand, nine hundred eighty-three".