19838101 has 4 divisors (see below), whose sum is σ = 20174400. Its totient is φ = 19501804.

The previous prime is 19838081. The next prime is 19838113. The reversal of 19838101 is 10183891.

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 a cyclic number.

It is not a de Polignac number, because 19838101 - 2⁵ = 19838069 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 (19838141) 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 3 ways as a sum of consecutive naturals, for example, 168061 + ... + 168178.

It is an arithmetic number, because the mean of its divisors is an integer number (5043600).

Almost surely, 2^19838101 is an apocalyptic number.

It is an amenable number.

19838101 is a deficient number, since it is larger than the sum of its proper divisors (336299).

19838101 is an equidigital number, since it uses as much as digits as its factorization.

19838101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336298.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 19838101 is about 4453.9983161200. The cubic root of 19838101 is about 270.7073405499.

The spelling of 19838101 in words is "nineteen million, eight hundred thirty-eight thousand, one hundred one".