132378109 has 2 divisors, whose sum is σ = 132378110. Its totient is φ = 132378108.

The previous prime is 132378101. The next prime is 132378139. The reversal of 132378109 is 901873231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124255609 + 8122500 = 11147^2 + 2850^2 .

It is a cyclic number.

It is not a de Polignac number, because 132378109 - 2³ = 132378101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132378101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66189054 + 66189055.

It is an arithmetic number, because the mean of its divisors is an integer number (66189055).

Almost surely, 2^132378109 is an apocalyptic number.

It is an amenable number.

132378109 is a deficient number, since it is larger than the sum of its proper divisors (1).

132378109 is an equidigital number, since it uses as much as digits as its factorization.

132378109 is an odious number, because the sum of its binary digits is odd.

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

The square root of 132378109 is about 11505.5686082870. The cubic root of 132378109 is about 509.6500341592.

The spelling of 132378109 in words is "one hundred thirty-two million, three hundred seventy-eight thousand, one hundred nine".