135238760109 has 32 divisors (see below), whose sum is σ = 207795744000. Its totient is φ = 86826261312.

The previous prime is 135238760089. The next prime is 135238760117. The reversal of 135238760109 is 901067832531.

135238760109 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 38 + 7 + 601 + 0 + 9 = 666.

It is not a de Polignac number, because 135238760109 - 2⁸ = 135238759853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135238760609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82584 + ... + 526590.

It is an arithmetic number, because the mean of its divisors is an integer number (6493617000).

Almost surely, 2^135238760109 is an apocalyptic number.

It is an amenable number.

135238760109 is a deficient number, since it is larger than the sum of its proper divisors (72556983891).

135238760109 is a wasteful number, since it uses less digits than its factorization.

135238760109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444434 (or 444428 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 135238760109 in words is "one hundred thirty-five billion, two hundred thirty-eight million, seven hundred sixty thousand, one hundred nine".