135136599 has 16 divisors (see below), whose sum is σ = 194548704. Its totient is φ = 82944000.

The previous prime is 135136597. The next prime is 135136601. The reversal of 135136599 is 995631531.

It is an interprime number because it is at equal distance from previous prime (135136597) and next prime (135136601).

It is not a de Polignac number, because 135136599 - 2¹ = 135136597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135136599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135136597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11319 + ... + 19959.

It is an arithmetic number, because the mean of its divisors is an integer number (12159294).

Almost surely, 2^135136599 is an apocalyptic number.

135136599 is a deficient number, since it is larger than the sum of its proper divisors (59412105).

135136599 is a wasteful number, since it uses less digits than its factorization.

135136599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058.

The product of its digits is 109350, while the sum is 42.

The square root of 135136599 is about 11624.8268374200. The cubic root of 135136599 is about 513.1657486445.

It can be divided in two parts, 1351 and 36599, that added together give a triangular number (37950 = T₂₇₅).

The spelling of 135136599 in words is "one hundred thirty-five million, one hundred thirty-six thousand, five hundred ninety-nine".