1332048581 has 4 divisors (see below), whose sum is σ = 1368049932. Its totient is φ = 1296047232.

The previous prime is 1332048569. The next prime is 1332048589. The reversal of 1332048581 is 1858402331.

It is a happy number.

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 1272063556 + 59985025 = 35666^2 + 7745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332048581 - 2¹⁴ = 1332032197 is a prime.

It is a super-2 number, since 2×1332048581² = 3548706844288227122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332048589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18000620 + ... + 18000693.

It is an arithmetic number, because the mean of its divisors is an integer number (342012483).

Almost surely, 2^1332048581 is an apocalyptic number.

It is an amenable number.

1332048581 is a deficient number, since it is larger than the sum of its proper divisors (36001351).

1332048581 is an equidigital number, since it uses as much as digits as its factorization.

1332048581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36001350.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1332048581 is about 36497.2407313210. The cubic root of 1332048581 is about 1100.2887894650.

The spelling of 1332048581 in words is "one billion, three hundred thirty-two million, forty-eight thousand, five hundred eighty-one".