135235742535 has 32 divisors (see below), whose sum is σ = 240520812480. Its totient is φ = 72095215104.

The previous prime is 135235742513. The next prime is 135235742549. The reversal of 135235742535 is 535247532531.

135235742535 is a `hidden beast` number, since 1 + 3 + 5 + 23 + 57 + 42 + 535 = 666.

It is not a de Polignac number, because 135235742535 - 2⁶ = 135235742471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110179 + ... + 531611.

It is an arithmetic number, because the mean of its divisors is an integer number (7516275390).

Almost surely, 2^135235742535 is an apocalyptic number.

135235742535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135235742535 is a deficient number, since it is larger than the sum of its proper divisors (105285069945).

135235742535 is a wasteful number, since it uses less digits than its factorization.

135235742535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423824 (or 423818 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 45.

The spelling of 135235742535 in words is "one hundred thirty-five billion, two hundred thirty-five million, seven hundred forty-two thousand, five hundred thirty-five".