1043072073481 has 9 divisors (see below), whose sum is σ = 1108056944149. Its totient is φ = 981698551744.

The previous prime is 1043072073443. The next prime is 1043072073509. The reversal of 1043072073481 is 1843702703401.

The square root of 1043072073481 is 1021309.

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

It can be written as a sum of positive squares in 4 ways, for example, as 35818969081 + 1007253104400 = 189259^2 + 1003620^2 .

It is not a de Polignac number, because 1043072073481 - 2³⁷ = 905633120009 is a prime.

It is a super-2 number, since 2×1043072073481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043072073431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17332215 + ... + 17392291.

Almost surely, 2^{1043072073481} is an apocalyptic number.

1043072073481 is the 1021309-th square number.

1043072073481 is the 510655-th centered octagonal number.

It is an amenable number.

1043072073481 is a deficient number, since it is larger than the sum of its proper divisors (64984870668).

1043072073481 is an frugal number, since it uses more digits than its factorization.

1043072073481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120188 (or 60094 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

Adding to 1043072073481 its reverse (1843702703401), we get a palindrome (2886774776882).

The spelling of 1043072073481 in words is "one trillion, forty-three billion, seventy-two million, seventy-three thousand, four hundred eighty-one".