1332645289 has 2 divisors, whose sum is σ = 1332645290. Its totient is φ = 1332645288.

The previous prime is 1332645287. The next prime is 1332645299. The reversal of 1332645289 is 9825462331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735331689 + 597313600 = 27117^2 + 24440^2 .

It is an emirp because it is prime and its reverse (9825462331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1332645289 - 2¹ = 1332645287 is a prime.

Together with 1332645287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1332645287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666322644 + 666322645.

It is an arithmetic number, because the mean of its divisors is an integer number (666322645).

Almost surely, 2^1332645289 is an apocalyptic number.

It is an amenable number.

1332645289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332645289 is an equidigital number, since it uses as much as digits as its factorization.

1332645289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 1332645289 is about 36505.4145162057. The cubic root of 1332645289 is about 1100.4530610289.

The spelling of 1332645289 in words is "one billion, three hundred thirty-two million, six hundred forty-five thousand, two hundred eighty-nine".