132157709 has 2 divisors, whose sum is σ = 132157710. Its totient is φ = 132157708.

The previous prime is 132157703. The next prime is 132157721. The reversal of 132157709 is 907751231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119355625 + 12802084 = 10925^2 + 3578^2 .

It is an emirp because it is prime and its reverse (907751231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132157709 - 2⁸ = 132157453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132157703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66078854 + 66078855.

It is an arithmetic number, because the mean of its divisors is an integer number (66078855).

Almost surely, 2^132157709 is an apocalyptic number.

It is an amenable number.

132157709 is a deficient number, since it is larger than the sum of its proper divisors (1).

132157709 is an equidigital number, since it uses as much as digits as its factorization.

132157709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 132157709 is about 11495.9866475218. The cubic root of 132157709 is about 509.3670335312.

The spelling of 132157709 in words is "one hundred thirty-two million, one hundred fifty-seven thousand, seven hundred nine".