135238785 has 16 divisors (see below), whose sum is σ = 236053440. Its totient is φ = 65570240.

The previous prime is 135238777. The next prime is 135238801. The reversal of 135238785 is 587832531.

It is not a de Polignac number, because 135238785 - 2³ = 135238777 is a prime.

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, 409650 + ... + 409979.

It is an arithmetic number, because the mean of its divisors is an integer number (14753340).

Almost surely, 2^135238785 is an apocalyptic number.

135238785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135238785 is a deficient number, since it is larger than the sum of its proper divisors (100814655).

135238785 is a wasteful number, since it uses less digits than its factorization.

135238785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819648.

The product of its digits is 201600, while the sum is 42.

The square root of 135238785 is about 11629.2211691067. The cubic root of 135238785 is about 513.2950625973.

The spelling of 135238785 in words is "one hundred thirty-five million, two hundred thirty-eight thousand, seven hundred eighty-five".