135545512399 has 16 divisors (see below), whose sum is σ = 153257559840. Its totient is φ = 118792863360.

The previous prime is 135545512397. The next prime is 135545512409. The reversal of 135545512399 is 993215545531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135545512399 - 2¹ = 135545512397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135545512397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483324 + ... + 1572049.

It is an arithmetic number, because the mean of its divisors is an integer number (9578597490).

Almost surely, 2^135545512399 is an apocalyptic number.

135545512399 is a deficient number, since it is larger than the sum of its proper divisors (17712047441).

135545512399 is a wasteful number, since it uses less digits than its factorization.

135545512399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055530.

The product of its digits is 3645000, while the sum is 52.

The spelling of 135545512399 in words is "one hundred thirty-five billion, five hundred forty-five million, five hundred twelve thousand, three hundred ninety-nine".