135240040823 has 8 divisors (see below), whose sum is σ = 143418742560. Its totient is φ = 127086161920.

The previous prime is 135240040813. The next prime is 135240040861. The reversal of 135240040823 is 328040042531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135240040823 - 2⁸ = 135240040567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135240040823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135240040813) 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, 6194483 + ... + 6216276.

It is an arithmetic number, because the mean of its divisors is an integer number (17927342820).

Almost surely, 2^135240040823 is an apocalyptic number.

135240040823 is a deficient number, since it is larger than the sum of its proper divisors (8178701737).

135240040823 is a wasteful number, since it uses less digits than its factorization.

135240040823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411417.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 135240040823 in words is "one hundred thirty-five billion, two hundred forty million, forty thousand, eight hundred twenty-three".