135684546553 has 32 divisors (see below), whose sum is σ = 146492881920. Its totient is φ = 125360706240.

The previous prime is 135684546551. The next prime is 135684546577. The reversal of 135684546553 is 355645486531.

It is a cyclic number.

It is not a de Polignac number, because 135684546553 - 2¹ = 135684546551 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135684546494 and 135684546503.

It is not an unprimeable number, because it can be changed into a prime (135684546551) 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, 34012683 + ... + 34016671.

It is an arithmetic number, because the mean of its divisors is an integer number (4577902560).

Almost surely, 2^135684546553 is an apocalyptic number.

It is an amenable number.

135684546553 is a deficient number, since it is larger than the sum of its proper divisors (10808335367).

135684546553 is a wasteful number, since it uses less digits than its factorization.

135684546553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429.

The product of its digits is 25920000, while the sum is 55.

The spelling of 135684546553 in words is "one hundred thirty-five billion, six hundred eighty-four million, five hundred forty-six thousand, five hundred fifty-three".