135144054423 has 24 divisors (see below), whose sum is σ = 232901320560. Its totient is φ = 77225173200.

The previous prime is 135144054359. The next prime is 135144054457. The reversal of 135144054423 is 324450441531.

135144054423 is a `hidden beast` number, since 1 + 3 + 51 + 4 + 40 + 544 + 23 = 666.

It is not a de Polignac number, because 135144054423 - 2⁶ = 135144054359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135144054923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51073528 + ... + 51076173.

It is an arithmetic number, because the mean of its divisors is an integer number (9704221690).

Almost surely, 2^135144054423 is an apocalyptic number.

135144054423 is a deficient number, since it is larger than the sum of its proper divisors (97757266137).

135144054423 is a wasteful number, since it uses less digits than its factorization.

135144054423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102149724 (or 102149711 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 135144054423 its reverse (324450441531), we get a palindrome (459594495954).

The spelling of 135144054423 in words is "one hundred thirty-five billion, one hundred forty-four million, fifty-four thousand, four hundred twenty-three".