135593553 has 4 divisors (see below), whose sum is σ = 180791408. Its totient is φ = 90395700.

The previous prime is 135593539. The next prime is 135593561. The reversal of 135593553 is 355395531.

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 not a de Polignac number, because 135593553 - 2⁶ = 135593489 is a prime.

It is a super-2 number, since 2×135593553² = 36771223230327618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135593573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22598923 + ... + 22598928.

It is an arithmetic number, because the mean of its divisors is an integer number (45197852).

Almost surely, 2^135593553 is an apocalyptic number.

It is an amenable number.

135593553 is a deficient number, since it is larger than the sum of its proper divisors (45197855).

135593553 is an equidigital number, since it uses as much as digits as its factorization.

135593553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45197854.

The product of its digits is 151875, while the sum is 39.

The square root of 135593553 is about 11644.4644788844. The cubic root of 135593553 is about 513.7435080667.

The spelling of 135593553 in words is "one hundred thirty-five million, five hundred ninety-three thousand, five hundred fifty-three".