132378817 has 2 divisors, whose sum is σ = 132378818. Its totient is φ = 132378816.

The previous prime is 132378787. The next prime is 132378877. The reversal of 132378817 is 718873231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114939841 + 17438976 = 10721^2 + 4176^2 .

It is an emirp because it is prime and its reverse (718873231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132378817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132378817.

It is not a weakly prime, because it can be changed into another prime (132378877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66189408 + 66189409.

It is an arithmetic number, because the mean of its divisors is an integer number (66189409).

Almost surely, 2^132378817 is an apocalyptic number.

It is an amenable number.

132378817 is a deficient number, since it is larger than the sum of its proper divisors (1).

132378817 is an equidigital number, since it uses as much as digits as its factorization.

132378817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 132378817 is about 11505.5993759560. The cubic root of 132378817 is about 509.6509427475.

The spelling of 132378817 in words is "one hundred thirty-two million, three hundred seventy-eight thousand, eight hundred seventeen".