19613049 has 12 divisors (see below), whose sum is σ = 27025488. Its totient is φ = 12651720.

The previous prime is 19613017. The next prime is 19613051. The reversal of 19613049 is 94031691.

It is not a de Polignac number, because 19613049 - 2⁵ = 19613017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19613249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519 + ... + 6284.

It is an arithmetic number, because the mean of its divisors is an integer number (2252124).

Almost surely, 2^19613049 is an apocalyptic number.

It is an amenable number.

19613049 is a deficient number, since it is larger than the sum of its proper divisors (7412439).

19613049 is an equidigital number, since it uses as much as digits as its factorization.

19613049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868 (or 6837 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 19613049 is about 4428.6622133552. The cubic root of 19613049 is about 269.6797712401.

The spelling of 19613049 in words is "nineteen million, six hundred thirteen thousand, forty-nine".