1838641141 has 4 divisors (see below), whose sum is σ = 1849921312. Its totient is φ = 1827360972.

The previous prime is 1838641099. The next prime is 1838641157. The reversal of 1838641141 is 1411468381.

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 1838641141 - 2¹¹ = 1838639093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1838641141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838641841) 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, 5639841 + ... + 5640166.

It is an arithmetic number, because the mean of its divisors is an integer number (462480328).

Almost surely, 2^1838641141 is an apocalyptic number.

It is an amenable number.

1838641141 is a deficient number, since it is larger than the sum of its proper divisors (11280171).

1838641141 is a wasteful number, since it uses less digits than its factorization.

1838641141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280170.

The product of its digits is 18432, while the sum is 37.

The square root of 1838641141 is about 42879.3789717155. The cubic root of 1838641141 is about 1225.0834075653.

The spelling of 1838641141 in words is "one billion, eight hundred thirty-eight million, six hundred forty-one thousand, one hundred forty-one".