481920591 has 16 divisors (see below), whose sum is σ = 650580480. Its totient is φ = 317287200.

The previous prime is 481920581. The next prime is 481920599. The reversal of 481920591 is 195029184.

It is not a de Polignac number, because 481920591 - 2⁵ = 481920559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481920599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131206 + ... + 134828.

It is an arithmetic number, because the mean of its divisors is an integer number (40661280).

Almost surely, 2^481920591 is an apocalyptic number.

481920591 is a deficient number, since it is larger than the sum of its proper divisors (168659889).

481920591 is a wasteful number, since it uses less digits than its factorization.

481920591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 481920591 is about 21952.6898351888. The cubic root of 481920591 is about 784.0164245613.

The spelling of 481920591 in words is "four hundred eighty-one million, nine hundred twenty thousand, five hundred ninety-one".