135932689 has 2 divisors, whose sum is σ = 135932690. Its totient is φ = 135932688.

The previous prime is 135932683. The next prime is 135932711. The reversal of 135932689 is 986239531.

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., 84953089 + 50979600 = 9217^2 + 7140^2 .

It is a cyclic number.

It is not a de Polignac number, because 135932689 - 2³ = 135932681 is a prime.

It is not a weakly prime, because it can be changed into another prime (135932681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67966344 + 67966345.

It is an arithmetic number, because the mean of its divisors is an integer number (67966345).

Almost surely, 2^135932689 is an apocalyptic number.

It is an amenable number.

135932689 is a deficient number, since it is larger than the sum of its proper divisors (1).

135932689 is an equidigital number, since it uses as much as digits as its factorization.

135932689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 135932689 is about 11659.0174971993. The cubic root of 135932689 is about 514.1714631823.

The spelling of 135932689 in words is "one hundred thirty-five million, nine hundred thirty-two thousand, six hundred eighty-nine".