19943053 has 4 divisors (see below), whose sum is σ = 21477148. Its totient is φ = 18408960.

The previous prime is 19943051. The next prime is 19943059. The reversal of 19943053 is 35034991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8369449 + 11573604 = 2893^2 + 3402^2 .

It is a cyclic number.

It is not a de Polignac number, because 19943053 - 2¹ = 19943051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19943051) 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 3 ways as a sum of consecutive naturals, for example, 767028 + ... + 767053.

It is an arithmetic number, because the mean of its divisors is an integer number (5369287).

Almost surely, 2^19943053 is an apocalyptic number.

19943053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19943053 is a deficient number, since it is larger than the sum of its proper divisors (1534095).

19943053 is a wasteful number, since it uses less digits than its factorization.

19943053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534094.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 19943053 is about 4465.7645482045. The cubic root of 19943053 is about 271.1838868511.

The spelling of 19943053 in words is "nineteen million, nine hundred forty-three thousand, fifty-three".