132478109 has 2 divisors, whose sum is σ = 132478110. Its totient is φ = 132478108.

The previous prime is 132478057. The next prime is 132478139. The reversal of 132478109 is 901874231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89208025 + 43270084 = 9445^2 + 6578^2 .

It is an emirp because it is prime and its reverse (901874231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132478109 - 2⁸ = 132477853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132478139) 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, 66239054 + 66239055.

It is an arithmetic number, because the mean of its divisors is an integer number (66239055).

Almost surely, 2^132478109 is an apocalyptic number.

It is an amenable number.

132478109 is a deficient number, since it is larger than the sum of its proper divisors (1).

132478109 is an equidigital number, since it uses as much as digits as its factorization.

132478109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 132478109 is about 11509.9135096664. The cubic root of 132478109 is about 509.7783337600.

The spelling of 132478109 in words is "one hundred thirty-two million, four hundred seventy-eight thousand, one hundred nine".