135049903 has 4 divisors (see below), whose sum is σ = 135213640. Its totient is φ = 134886168.

The previous prime is 135049867. The next prime is 135049907. The reversal of 135049903 is 309940531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135049903 - 2⁹ = 135049391 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 (135049907) 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, 80625 + ... + 82282.

It is an arithmetic number, because the mean of its divisors is an integer number (33803410).

Almost surely, 2^135049903 is an apocalyptic number.

135049903 is a deficient number, since it is larger than the sum of its proper divisors (163737).

135049903 is an equidigital number, since it uses as much as digits as its factorization.

135049903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163736.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 135049903 is about 11621.0973234028. The cubic root of 135049903 is about 513.0559857936.

The spelling of 135049903 in words is "one hundred thirty-five million, forty-nine thousand, nine hundred three".