1332252521 has 2 divisors, whose sum is σ = 1332252522. Its totient is φ = 1332252520.

The previous prime is 1332252499. The next prime is 1332252539. The reversal of 1332252521 is 1252522331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748788496 + 583464025 = 27364^2 + 24155^2 .

It is an emirp because it is prime and its reverse (1252522331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1332252521 - 2⁶ = 1332252457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1332252121) 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 as a sum of consecutive naturals, namely, 666126260 + 666126261.

It is an arithmetic number, because the mean of its divisors is an integer number (666126261).

Almost surely, 2^1332252521 is an apocalyptic number.

It is an amenable number.

1332252521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332252521 is an equidigital number, since it uses as much as digits as its factorization.

1332252521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 1332252521 is about 36500.0345342302. The cubic root of 1332252521 is about 1100.3449389299.

Adding to 1332252521 its reverse (1252522331), we get a palindrome (2584774852).

The spelling of 1332252521 in words is "one billion, three hundred thirty-two million, two hundred fifty-two thousand, five hundred twenty-one".