481603581 has 12 divisors (see below), whose sum is σ = 714451452. Its totient is φ = 312391296.

The previous prime is 481603567. The next prime is 481603643. The reversal of 481603581 is 185306184.

481603581 is a `hidden beast` number, since 48 + 1 + 603 + 5 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 230888025 + 250715556 = 15195^2 + 15834^2 .

It is not a de Polignac number, because 481603581 - 2⁶ = 481603517 is a prime.

It is a super-2 number, since 2×481603581² = 463884018464047122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481603531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722796 + ... + 723461.

It is an arithmetic number, because the mean of its divisors is an integer number (59537621).

Almost surely, 2^481603581 is an apocalyptic number.

It is an amenable number.

481603581 is a deficient number, since it is larger than the sum of its proper divisors (232847871).

481603581 is a wasteful number, since it uses less digits than its factorization.

481603581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446300 (or 1446297 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 481603581 is about 21945.4683477022. The cubic root of 481603581 is about 783.8444767560.

The spelling of 481603581 in words is "four hundred eighty-one million, six hundred three thousand, five hundred eighty-one".