135602550 has 72 divisors (see below), whose sum is σ = 376917840. Its totient is φ = 34910400.

The previous prime is 135602543. The next prime is 135602581. The reversal of 135602550 is 55206531.

135602550 is a `hidden beast` number, since 1 + 3 + 5 + 602 + 5 + 50 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7855 + ... + 18245.

It is an arithmetic number, because the mean of its divisors is an integer number (5234970).

Almost surely, 2^135602550 is an apocalyptic number.

135602550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135602550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188458920).

135602550 is an abundant number, since it is smaller than the sum of its proper divisors (241315290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135602550 is a wasteful number, since it uses less digits than its factorization.

135602550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438 (or 10430 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 135602550 is about 11644.8507933764. The cubic root of 135602550 is about 513.7548705738.

It can be divided in two parts, 13560 and 2550, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 135602550 in words is "one hundred thirty-five million, six hundred two thousand, five hundred fifty".