135178242 has 32 divisors (see below), whose sum is σ = 278980800. Its totient is φ = 43633728.

The previous prime is 135178231. The next prime is 135178289. The reversal of 135178242 is 242871531.

It is a super-2 number, since 2×135178242² = 36546314220421128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49509 + ... + 52167.

It is an arithmetic number, because the mean of its divisors is an integer number (8718150).

Almost surely, 2^135178242 is an apocalyptic number.

135178242 is an abundant number, since it is smaller than the sum of its proper divisors (143802558).

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

135178242 is a wasteful number, since it uses less digits than its factorization.

135178242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930.

The product of its digits is 13440, while the sum is 33.

The square root of 135178242 is about 11626.6178229096. The cubic root of 135178242 is about 513.2184547378.

The spelling of 135178242 in words is "one hundred thirty-five million, one hundred seventy-eight thousand, two hundred forty-two".