19835141 has 4 divisors (see below), whose sum is σ = 21001932. Its totient is φ = 18668352.

The previous prime is 19835129. The next prime is 19835143. The reversal of 19835141 is 14153891.

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 6300100 + 13535041 = 2510^2 + 3679^2 .

It is a cyclic number.

It is not a de Polignac number, because 19835141 - 2⁶ = 19835077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19835098 and 19835107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19835143) 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, 583370 + ... + 583403.

It is an arithmetic number, because the mean of its divisors is an integer number (5250483).

Almost surely, 2^19835141 is an apocalyptic number.

It is an amenable number.

19835141 is a deficient number, since it is larger than the sum of its proper divisors (1166791).

19835141 is a wasteful number, since it uses less digits than its factorization.

19835141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166790.

The product of its digits is 4320, while the sum is 32.

The square root of 19835141 is about 4453.6660180126. Note that the first 3 decimals coincide. The cubic root of 19835141 is about 270.6938759953.

The spelling of 19835141 in words is "nineteen million, eight hundred thirty-five thousand, one hundred forty-one".