135233553 has 16 divisors (see below), whose sum is σ = 221922176. Its totient is φ = 71331840.

The previous prime is 135233551. The next prime is 135233561. The reversal of 135233553 is 355332531.

It is not a de Polignac number, because 135233553 - 2¹ = 135233551 is a prime.

It is a super-2 number, since 2×135233553² = 36576227714007618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135233553.

It is not an unprimeable number, because it can be changed into a prime (135233551) 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, 247408 + ... + 247953.

It is an arithmetic number, because the mean of its divisors is an integer number (13870136).

Almost surely, 2^135233553 is an apocalyptic number.

135233553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135233553 is a deficient number, since it is larger than the sum of its proper divisors (86688623).

135233553 is a wasteful number, since it uses less digits than its factorization.

135233553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495384.

The product of its digits is 20250, while the sum is 30.

The square root of 135233553 is about 11628.9962163550. The cubic root of 135233553 is about 513.2884432082.

The spelling of 135233553 in words is "one hundred thirty-five million, two hundred thirty-three thousand, five hundred fifty-three".