1332273991 has 2 divisors, whose sum is σ = 1332273992. Its totient is φ = 1332273990.

The previous prime is 1332273989. The next prime is 1332274001. The reversal of 1332273991 is 1993722331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1332273991 - 2¹ = 1332273989 is a prime.

Together with 1332273989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332273961) 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, 666136995 + 666136996.

It is an arithmetic number, because the mean of its divisors is an integer number (666136996).

Almost surely, 2^1332273991 is an apocalyptic number.

1332273991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332273991 is an equidigital number, since it uses as much as digits as its factorization.

1332273991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 40.

The square root of 1332273991 is about 36500.3286423561. The cubic root of 1332273991 is about 1100.3508497910.

The spelling of 1332273991 in words is "one billion, three hundred thirty-two million, two hundred seventy-three thousand, nine hundred ninety-one".