135829523 has 4 divisors (see below), whose sum is σ = 136438848. Its totient is φ = 135220200.

The previous prime is 135829489. The next prime is 135829531. The reversal of 135829523 is 325928531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325928531 = 13687 ⋅23813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135829523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135829543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304328 + ... + 304773.

It is an arithmetic number, because the mean of its divisors is an integer number (34109712).

Almost surely, 2^135829523 is an apocalyptic number.

135829523 is a deficient number, since it is larger than the sum of its proper divisors (609325).

135829523 is an equidigital number, since it uses as much as digits as its factorization.

135829523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609324.

The product of its digits is 64800, while the sum is 38.

The square root of 135829523 is about 11654.5923566635. The cubic root of 135829523 is about 514.0413535947.

The spelling of 135829523 in words is "one hundred thirty-five million, eight hundred twenty-nine thousand, five hundred twenty-three".