135640506 has 32 divisors (see below), whose sum is σ = 286963200. Its totient is φ = 42623280.

The previous prime is 135640481. The next prime is 135640513. The reversal of 135640506 is 605046531.

135640506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 21235 + ... + 26873.

It is an arithmetic number, because the mean of its divisors is an integer number (8967600).

Almost surely, 2^135640506 is an apocalyptic number.

135640506 is an abundant number, since it is smaller than the sum of its proper divisors (151322694).

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

135640506 is a wasteful number, since it uses less digits than its factorization.

135640506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 135640506 is about 11646.4804125538. The cubic root of 135640506 is about 513.8028005003.

The spelling of 135640506 in words is "one hundred thirty-five million, six hundred forty thousand, five hundred six".