481991065 has 8 divisors (see below), whose sum is σ = 578632320. Its totient is φ = 385430832.

The previous prime is 481991053. The next prime is 481991077. The reversal of 481991065 is 560199184.

It is an interprime number because it is at equal distance from previous prime (481991053) and next prime (481991077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 481991065 - 2⁷ = 481990937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6289 + ... + 31678.

It is an arithmetic number, because the mean of its divisors is an integer number (72329040).

Almost surely, 2^481991065 is an apocalyptic number.

It is an amenable number.

481991065 is a deficient number, since it is larger than the sum of its proper divisors (96641255).

481991065 is a wasteful number, since it uses less digits than its factorization.

481991065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40511.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 481991065 is about 21954.2949101081. The cubic root of 481991065 is about 784.0546397649.

The spelling of 481991065 in words is "four hundred eighty-one million, nine hundred ninety-one thousand, sixty-five".