135154634561 has 16 divisors (see below), whose sum is σ = 144160051200. Its totient is φ = 126340473168.

The previous prime is 135154634533. The next prime is 135154634611. The reversal of 135154634561 is 165436451531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135154634561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135154634521) 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, 2414456 + ... + 2469798.

It is an arithmetic number, because the mean of its divisors is an integer number (9010003200).

Almost surely, 2^135154634561 is an apocalyptic number.

It is an amenable number.

135154634561 is a deficient number, since it is larger than the sum of its proper divisors (9005416639).

135154634561 is a wasteful number, since it uses less digits than its factorization.

135154634561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57068.

The product of its digits is 648000, while the sum is 44.

The spelling of 135154634561 in words is "one hundred thirty-five billion, one hundred fifty-four million, six hundred thirty-four thousand, five hundred sixty-one".