135142550 has 48 divisors (see below), whose sum is σ = 259269120. Its totient is φ = 52379040.

The previous prime is 135142529. The next prime is 135142561. The reversal of 135142550 is 55241531.

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 23 ways as a sum of consecutive naturals, for example, 513719 + ... + 513981.

It is an arithmetic number, because the mean of its divisors is an integer number (5401440).

Almost surely, 2^135142550 is an apocalyptic number.

135142550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135142550 is a deficient number, since it is larger than the sum of its proper divisors (124126570).

135142550 is a wasteful number, since it uses less digits than its factorization.

135142550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 135142550 is about 11625.0827954041. The cubic root of 135142550 is about 513.1732812808.

The spelling of 135142550 in words is "one hundred thirty-five million, one hundred forty-two thousand, five hundred fifty".