481143111 has 4 divisors (see below), whose sum is σ = 641524152. Its totient is φ = 320762072.

The previous prime is 481143109. The next prime is 481143121. The reversal of 481143111 is 111341184.

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

It is a cyclic number.

It is not a de Polignac number, because 481143111 - 2¹ = 481143109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481143121) 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, 80190516 + ... + 80190521.

It is an arithmetic number, because the mean of its divisors is an integer number (160381038).

Almost surely, 2^481143111 is an apocalyptic number.

481143111 is a deficient number, since it is larger than the sum of its proper divisors (160381041).

481143111 is a wasteful number, since it uses less digits than its factorization.

481143111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160381040.

The product of its digits is 384, while the sum is 24.

The square root of 481143111 is about 21934.9746067781. The cubic root of 481143111 is about 783.5945810780.

Adding to 481143111 its reverse (111341184), we get a palindrome (592484295).

The spelling of 481143111 in words is "four hundred eighty-one million, one hundred forty-three thousand, one hundred eleven".