132706391 has 2 divisors, whose sum is σ = 132706392. Its totient is φ = 132706390.

The previous prime is 132706367. The next prime is 132706433. The reversal of 132706391 is 193607231.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193607231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132706391 - 2¹⁴ = 132690007 is a prime.

It is a super-3 number, since 3×132706391³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132706331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66353195 + 66353196.

It is an arithmetic number, because the mean of its divisors is an integer number (66353196).

Almost surely, 2^132706391 is an apocalyptic number.

132706391 is a deficient number, since it is larger than the sum of its proper divisors (1).

132706391 is an equidigital number, since it uses as much as digits as its factorization.

132706391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 132706391 is about 11519.8259969498. The cubic root of 132706391 is about 510.0709769216.

The spelling of 132706391 in words is "one hundred thirty-two million, seven hundred six thousand, three hundred ninety-one".