78132319 has 2 divisors, whose sum is σ = 78132320. Its totient is φ = 78132318.

The previous prime is 78132269. The next prime is 78132337. The reversal of 78132319 is 91323187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78132319 - 2¹¹ = 78130271 is a prime.

It is a super-2 number, since 2×78132319² = 12209318544635522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78132349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39066159 + 39066160.

It is an arithmetic number, because the mean of its divisors is an integer number (39066160).

Almost surely, 2^78132319 is an apocalyptic number.

78132319 is a deficient number, since it is larger than the sum of its proper divisors (1).

78132319 is an equidigital number, since it uses as much as digits as its factorization.

78132319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 78132319 is about 8839.2487802980. The cubic root of 78132319 is about 427.5073359205.

The spelling of 78132319 in words is "seventy-eight million, one hundred thirty-two thousand, three hundred nineteen".