481145999 has 4 divisors (see below), whose sum is σ = 483665280. Its totient is φ = 478626720.

The previous prime is 481145941. The next prime is 481146011. The reversal of 481145999 is 999541184.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481145999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481145099) 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 in 3 ways as a sum of consecutive naturals, for example, 1259354 + ... + 1259735.

It is an arithmetic number, because the mean of its divisors is an integer number (120916320).

Almost surely, 2^481145999 is an apocalyptic number.

481145999 is a deficient number, since it is larger than the sum of its proper divisors (2519281).

481145999 is a wasteful number, since it uses less digits than its factorization.

481145999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519280.

The product of its digits is 466560, while the sum is 50.

The square root of 481145999 is about 21935.0404376194. The cubic root of 481145999 is about 783.5961488837.

The spelling of 481145999 in words is "four hundred eighty-one million, one hundred forty-five thousand, nine hundred ninety-nine".