135243754074 has 96 divisors (see below), whose sum is σ = 347415868800. Its totient is φ = 37483274880.

The previous prime is 135243754067. The next prime is 135243754169. The reversal of 135243754074 is 470457342531.

It is a happy number.

135243754074 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 4 + 37 + 540 + 74 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39547 + ... + 521585.

It is an arithmetic number, because the mean of its divisors is an integer number (3618915300).

Almost surely, 2^135243754074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135243754074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173707934400).

135243754074 is an abundant number, since it is smaller than the sum of its proper divisors (212172114726).

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

135243754074 is a wasteful number, since it uses less digits than its factorization.

135243754074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482180 (or 482177 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 135243754074 in words is "one hundred thirty-five billion, two hundred forty-three million, seven hundred fifty-four thousand, seventy-four".