135405204553 has 16 divisors (see below), whose sum is σ = 140684544000. Its totient is φ = 130227545232.

The previous prime is 135405204523. The next prime is 135405204563. The reversal of 135405204553 is 355402504531.

It is a cyclic number.

It is not a de Polignac number, because 135405204553 - 2⁹ = 135405204041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135405204523) 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, 8530138 + ... + 8545996.

It is an arithmetic number, because the mean of its divisors is an integer number (8792784000).

Almost surely, 2^135405204553 is an apocalyptic number.

It is an amenable number.

135405204553 is a deficient number, since it is larger than the sum of its proper divisors (5279339447).

135405204553 is a wasteful number, since it uses less digits than its factorization.

135405204553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19044.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 135405204553 in words is "one hundred thirty-five billion, four hundred five million, two hundred four thousand, five hundred fifty-three".