135040529 has 8 divisors (see below), whose sum is σ = 145539240. Its totient is φ = 124557696.

The previous prime is 135040517. The next prime is 135040531. The reversal of 135040529 is 925040531.

It can be written as a sum of positive squares in 4 ways, for example, as 16129 + 135024400 = 127^2 + 11620^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135040529 - 2⁸ = 135040273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135040229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18407 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (18192405).

Almost surely, 2^135040529 is an apocalyptic number.

It is an amenable number.

135040529 is a deficient number, since it is larger than the sum of its proper divisors (10498711).

135040529 is a wasteful number, since it uses less digits than its factorization.

135040529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 135040529 is about 11620.6939982085. The cubic root of 135040529 is about 513.0441148778.

The spelling of 135040529 in words is "one hundred thirty-five million, forty thousand, five hundred twenty-nine".