135699829 has 2 divisors, whose sum is σ = 135699830. Its totient is φ = 135699828.

The previous prime is 135699821. The next prime is 135699841. The reversal of 135699829 is 928996531.

135699829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108680625 + 27019204 = 10425^2 + 5198^2 .

It is an emirp because it is prime and its reverse (928996531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135699829 - 2³ = 135699821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135699821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67849914 + 67849915.

It is an arithmetic number, because the mean of its divisors is an integer number (67849915).

Almost surely, 2^135699829 is an apocalyptic number.

It is an amenable number.

135699829 is a deficient number, since it is larger than the sum of its proper divisors (1).

135699829 is an equidigital number, since it uses as much as digits as its factorization.

135699829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 52.

The square root of 135699829 is about 11649.0269550723. The cubic root of 135699829 is about 513.8776942567.

The spelling of 135699829 in words is "one hundred thirty-five million, six hundred ninety-nine thousand, eight hundred twenty-nine".