481881 has 4 divisors (see below), whose sum is σ = 642512. Its totient is φ = 321252.

The previous prime is 481879. The next prime is 481883. The reversal of 481881 is 188184.

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 an interprime number because it is at equal distance from previous prime (481879) and next prime (481883).

It is not a de Polignac number, because 481881 - 2¹ = 481879 is a prime.

It is a super-2 number, since 2×481881² = 464418596322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (481883) 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, 80311 + ... + 80316.

It is an arithmetic number, because the mean of its divisors is an integer number (160628).

2⁴⁸¹⁸⁸¹ is an apocalyptic number.

It is an amenable number.

481881 is a deficient number, since it is larger than the sum of its proper divisors (160631).

481881 is a wasteful number, since it uses less digits than its factorization.

481881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160630.

The product of its digits is 2048, while the sum is 30.

The square root of 481881 is about 694.1764905267. The cubic root of 481881 is about 78.3994954327.

The spelling of 481881 in words is "four hundred eighty-one thousand, eight hundred eighty-one".