1008562481 has 4 divisors (see below), whose sum is σ = 1009244964. Its totient is φ = 1007880000.

The previous prime is 1008562459. The next prime is 1008562483. The reversal of 1008562481 is 1842658001.

1008562481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 790734400 + 217828081 = 28120^2 + 14759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1008562481 is a prime.

It is a super-2 number, since 2×1008562481² = 2034396556161750722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008562483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339020 + ... + 341981.

It is an arithmetic number, because the mean of its divisors is an integer number (252311241).

Almost surely, 2^1008562481 is an apocalyptic number.

It is an amenable number.

1008562481 is a deficient number, since it is larger than the sum of its proper divisors (682483).

1008562481 is an equidigital number, since it uses as much as digits as its factorization.

1008562481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682482.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 1008562481 is about 31757.8727404718. The cubic root of 1008562481 is about 1002.8460526334.

The spelling of 1008562481 in words is "one billion, eight million, five hundred sixty-two thousand, four hundred eighty-one".