2019573 has 12 divisors (see below), whose sum is σ = 3025568. Its totient is φ = 1346220.

The previous prime is 2019569. The next prime is 2019587. The reversal of 2019573 is 3759102.

It is not a de Polignac number, because 2019573 - 2² = 2019569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019503) 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, 3913 + ... + 4398.

2^2019573 is an apocalyptic number.

It is an amenable number.

2019573 is a deficient number, since it is larger than the sum of its proper divisors (1005995).

2019573 is an frugal number, since it uses more digits than its factorization.

2019573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 8314 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2019573 is about 1421.1168143400. The cubic root of 2019573 is about 126.4017787030.

The spelling of 2019573 in words is "two million, nineteen thousand, five hundred seventy-three".