135005503 has 4 divisors (see below), whose sum is σ = 135317728. Its totient is φ = 134693280.

The previous prime is 135005501. The next prime is 135005531. The reversal of 135005503 is 305500531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305500531 = 7 ⋅43642933.

It is a cyclic number.

It is not a de Polignac number, because 135005503 - 2¹ = 135005501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135005501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155463 + ... + 156328.

It is an arithmetic number, because the mean of its divisors is an integer number (33829432).

Almost surely, 2^135005503 is an apocalyptic number.

135005503 is a deficient number, since it is larger than the sum of its proper divisors (312225).

135005503 is an equidigital number, since it uses as much as digits as its factorization.

135005503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312224.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 135005503 is about 11619.1868476241. The cubic root of 135005503 is about 512.9997542769. Note that the first 3 decimals are identical.

The spelling of 135005503 in words is "one hundred thirty-five million, five thousand, five hundred three".