19852113 has 4 divisors (see below), whose sum is σ = 26469488. Its totient is φ = 13234740.

The previous prime is 19852109. The next prime is 19852127. The reversal of 19852113 is 31125891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 19852113 - 2² = 19852109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19852103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3308683 + ... + 3308688.

It is an arithmetic number, because the mean of its divisors is an integer number (6617372).

Almost surely, 2^19852113 is an apocalyptic number.

It is an amenable number.

19852113 is a deficient number, since it is larger than the sum of its proper divisors (6617375).

19852113 is an equidigital number, since it uses as much as digits as its factorization.

19852113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617374.

The product of its digits is 2160, while the sum is 30.

The square root of 19852113 is about 4455.5710071774. The cubic root of 19852113 is about 270.7710606703.

The spelling of 19852113 in words is "nineteen million, eight hundred fifty-two thousand, one hundred thirteen".