1332342521 has 4 divisors (see below), whose sum is σ = 1375321344. Its totient is φ = 1289363700.

The previous prime is 1332342469. The next prime is 1332342523. The reversal of 1332342521 is 1252432331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1332342521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1332342523) 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, 21489365 + ... + 21489426.

It is an arithmetic number, because the mean of its divisors is an integer number (343830336).

Almost surely, 2^1332342521 is an apocalyptic number.

It is an amenable number.

1332342521 is a deficient number, since it is larger than the sum of its proper divisors (42978823).

1332342521 is an equidigital number, since it uses as much as digits as its factorization.

1332342521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42978822.

The product of its digits is 4320, while the sum is 26.

The square root of 1332342521 is about 36501.2673889551. The cubic root of 1332342521 is about 1100.3697162182.

Adding to 1332342521 its reverse (1252432331), we get a palindrome (2584774852).

The spelling of 1332342521 in words is "one billion, three hundred thirty-two million, three hundred forty-two thousand, five hundred twenty-one".