4131863 has 4 divisors (see below), whose sum is σ = 4169880. Its totient is φ = 4093848.

The previous prime is 4131859. The next prime is 4131877. The reversal of 4131863 is 3681314.

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 4131863 - 2² = 4131859 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131763) 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, 18845 + ... + 19062.

It is an arithmetic number, because the mean of its divisors is an integer number (1042470).

Almost surely, 2^4131863 is an apocalyptic number.

4131863 is a deficient number, since it is larger than the sum of its proper divisors (38017).

4131863 is a wasteful number, since it uses less digits than its factorization.

4131863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38016.

The product of its digits is 1728, while the sum is 26.

The square root of 4131863 is about 2032.6984527962. The cubic root of 4131863 is about 160.4656098780.

It can be divided in two parts, 4131 and 863, that added together give a palindrome (4994).

The spelling of 4131863 in words is "four million, one hundred thirty-one thousand, eight hundred sixty-three".