481130661 has 32 divisors (see below), whose sum is σ = 716636160. Its totient is φ = 284648000.

The previous prime is 481130641. The next prime is 481130669. The reversal of 481130661 is 166031184.

It is a cyclic number.

It is not a de Polignac number, because 481130661 - 2¹⁰ = 481129637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481130669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417436 + ... + 418586.

It is an arithmetic number, because the mean of its divisors is an integer number (22394880).

Almost surely, 2^481130661 is an apocalyptic number.

It is an amenable number.

481130661 is a deficient number, since it is larger than the sum of its proper divisors (235505499).

481130661 is a wasteful number, since it uses less digits than its factorization.

481130661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 481130661 is about 21934.6908115888. The cubic root of 481130661 is about 783.5878222874.

The spelling of 481130661 in words is "four hundred eighty-one million, one hundred thirty thousand, six hundred sixty-one".