481275891 has 8 divisors (see below), whose sum is σ = 713001360. Its totient is φ = 320850576.

The previous prime is 481275889. The next prime is 481275901. The reversal of 481275891 is 198572184.

481275891 is a `hidden beast` number, since 48 + 1 + 27 + 589 + 1 = 666.

It is not a de Polignac number, because 481275891 - 2¹ = 481275889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (481275841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8912490 + ... + 8912543.

It is an arithmetic number, because the mean of its divisors is an integer number (89125170).

Almost surely, 2^481275891 is an apocalyptic number.

481275891 is a deficient number, since it is larger than the sum of its proper divisors (231725469).

481275891 is a wasteful number, since it uses less digits than its factorization.

481275891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17825042 (or 17825036 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 481275891 is about 21938.0010712006. The cubic root of 481275891 is about 783.6666567360. Note that the first 4 decimals are identical.

The spelling of 481275891 in words is "four hundred eighty-one million, two hundred seventy-five thousand, eight hundred ninety-one".