135145784 has 32 divisors (see below), whose sum is σ = 282430800. Its totient is φ = 60249600.

The previous prime is 135145783. The next prime is 135145819. The reversal of 135145784 is 487541531.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135145783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23567 + ... + 28734.

Almost surely, 2^135145784 is an apocalyptic number.

It is an amenable number.

135145784 is an abundant number, since it is smaller than the sum of its proper divisors (147285016).

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

135145784 is a wasteful number, since it uses less digits than its factorization.

135145784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52343 (or 52339 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 135145784 is about 11625.2218903555. The cubic root of 135145784 is about 513.1773747094.

The spelling of 135145784 in words is "one hundred thirty-five million, one hundred forty-five thousand, seven hundred eighty-four".