1043871481 has 3 divisors (see below), whose sum is σ = 1043903791. Its totient is φ = 1043839172.

The previous prime is 1043871473. The next prime is 1043871487. The reversal of 1043871481 is 1841783401.

The square root of 1043871481 is 32309.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 964661481 + 79210000 = 31059^2 + 8900^2 .

It is not a de Polignac number, because 1043871481 - 2³ = 1043871473 is a prime.

It is a super-2 number, since 2×1043871481² = 2179335337690266722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043871481.

It is not an unprimeable number, because it can be changed into a prime (1043871487) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16155 + ... + 48463.

Almost surely, 2^1043871481 is an apocalyptic number.

1043871481 is the 32309-th square number.

1043871481 is the 16155-th centered octagonal number.

It is an amenable number.

1043871481 is a deficient number, since it is larger than the sum of its proper divisors (32310).

1043871481 is an frugal number, since it uses more digits than its factorization.

1043871481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64618 (or 32309 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The cubic root of 1043871481 is about 1014.4150353081.

The spelling of 1043871481 in words is "one billion, forty-three million, eight hundred seventy-one thousand, four hundred eighty-one".