481604581 has 2 divisors, whose sum is σ = 481604582. Its totient is φ = 481604580.

The previous prime is 481604569. The next prime is 481604593. The reversal of 481604581 is 185406184.

It is a balanced prime because it is at equal distance from previous prime (481604569) and next prime (481604593).

It can be written as a sum of positive squares in only one way, i.e., 414773956 + 66830625 = 20366^2 + 8175^2 .

It is a cyclic number.

It is not a de Polignac number, because 481604581 - 2⁵ = 481604549 is a prime.

It is a super-2 number, since 2×481604581² = 463885944880371122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 481604581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481604681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240802290 + 240802291.

It is an arithmetic number, because the mean of its divisors is an integer number (240802291).

Almost surely, 2^481604581 is an apocalyptic number.

It is an amenable number.

481604581 is a deficient number, since it is larger than the sum of its proper divisors (1).

481604581 is an equidigital number, since it uses as much as digits as its factorization.

481604581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 481604581 is about 21945.4911314375. The cubic root of 481604581 is about 783.8450192796.

The spelling of 481604581 in words is "four hundred eighty-one million, six hundred four thousand, five hundred eighty-one".