481931 has 4 divisors (see below), whose sum is σ = 489192. Its totient is φ = 474672.

The previous prime is 481909. The next prime is 481939. The reversal of 481931 is 139184.

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 481931 - 2⁶ = 481867 is a prime.

It is a super-2 number, since 2×481931² = 464514977522, which contains 22 as substring.

It is an Ulam number.

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 481931.

It is not an unprimeable number, because it can be changed into a prime (481939) 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, 3530 + ... + 3663.

It is an arithmetic number, because the mean of its divisors is an integer number (122298).

2⁴⁸¹⁹³¹ is an apocalyptic number.

481931 is a deficient number, since it is larger than the sum of its proper divisors (7261).

481931 is an equidigital number, since it uses as much as digits as its factorization.

481931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260.

The product of its digits is 864, while the sum is 26.

The square root of 481931 is about 694.2125034887. The cubic root of 481931 is about 78.4022069176.

The spelling of 481931 in words is "four hundred eighty-one thousand, nine hundred thirty-one".