481315493 has 2 divisors, whose sum is σ = 481315494. Its totient is φ = 481315492.

The previous prime is 481315487. The next prime is 481315507. The reversal of 481315493 is 394513184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448677124 + 32638369 = 21182^2 + 5713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481315493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481315433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240657746 + 240657747.

It is an arithmetic number, because the mean of its divisors is an integer number (240657747).

Almost surely, 2^481315493 is an apocalyptic number.

It is an amenable number.

481315493 is a deficient number, since it is larger than the sum of its proper divisors (1).

481315493 is an equidigital number, since it uses as much as digits as its factorization.

481315493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 481315493 is about 21938.9036417046. The cubic root of 481315493 is about 783.6881509325.

The spelling of 481315493 in words is "four hundred eighty-one million, three hundred fifteen thousand, four hundred ninety-three".