135275553 has 12 divisors (see below), whose sum is σ = 223312128. Its totient is φ = 77300280.

The previous prime is 135275551. The next prime is 135275561. The reversal of 135275553 is 355572531.

135275553 is a `hidden beast` number, since 1 + 35 + 2 + 75 + 553 = 666.

It is not a de Polignac number, because 135275553 - 2¹ = 135275551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135275551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073553 + ... + 1073678.

It is an arithmetic number, because the mean of its divisors is an integer number (18609344).

Almost surely, 2^135275553 is an apocalyptic number.

It is an amenable number.

135275553 is a deficient number, since it is larger than the sum of its proper divisors (88036575).

135275553 is a wasteful number, since it uses less digits than its factorization.

135275553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147244 (or 2147241 counting only the distinct ones).

The product of its digits is 78750, while the sum is 36.

The square root of 135275553 is about 11630.8019070054. The cubic root of 135275553 is about 513.3415756908.

The spelling of 135275553 in words is "one hundred thirty-five million, two hundred seventy-five thousand, five hundred fifty-three".