135006553 has 4 divisors (see below), whose sum is σ = 147279888. Its totient is φ = 122733220.

The previous prime is 135006539. The next prime is 135006569. The reversal of 135006553 is 355600531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135006553 - 2¹³ = 134998361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135006583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6136651 + ... + 6136672.

It is an arithmetic number, because the mean of its divisors is an integer number (36819972).

Almost surely, 2^135006553 is an apocalyptic number.

It is an amenable number.

135006553 is a deficient number, since it is larger than the sum of its proper divisors (12273335).

135006553 is a wasteful number, since it uses less digits than its factorization.

135006553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12273334.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 135006553 is about 11619.2320314210. The cubic root of 135006553 is about 513.0010842186.

The spelling of 135006553 in words is "one hundred thirty-five million, six thousand, five hundred fifty-three".