481231969 has 3 divisors (see below), whose sum is σ = 481253907. Its totient is φ = 481210032.

The previous prime is 481231957. The next prime is 481231999. The reversal of 481231969 is 969132184.

It is a happy number.

The square root of 481231969 is 21937.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 77704225 + 403527744 = 8815^2 + 20088^2 .

It is not a de Polignac number, because 481231969 - 2¹¹ = 481229921 is a prime.

It is a super-2 number, since 2×481231969² = 463168415975233922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481231999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10969 + ... + 32905.

It is an arithmetic number, because the mean of its divisors is an integer number (160417969).

Almost surely, 2^481231969 is an apocalyptic number.

481231969 is the 21937-th square number.

481231969 is the 10969-th centered octagonal number.

It is an amenable number.

481231969 is a deficient number, since it is larger than the sum of its proper divisors (21938).

481231969 is an frugal number, since it uses more digits than its factorization.

481231969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43874 (or 21937 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The cubic root of 481231969 is about 783.6428164573.

The spelling of 481231969 in words is "four hundred eighty-one million, two hundred thirty-one thousand, nine hundred sixty-nine".