135385273 has 4 divisors (see below), whose sum is σ = 135429520. Its totient is φ = 135341028.

The previous prime is 135385259. The next prime is 135385301. The reversal of 135385273 is 372583531.

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 a cyclic number.

It is not a de Polignac number, because 135385273 - 2⁹ = 135384761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135385213) 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, 17163 + ... + 23776.

It is an arithmetic number, because the mean of its divisors is an integer number (33857380).

Almost surely, 2^135385273 is an apocalyptic number.

It is an amenable number.

135385273 is a deficient number, since it is larger than the sum of its proper divisors (44247).

135385273 is an equidigital number, since it uses as much as digits as its factorization.

135385273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44246.

The product of its digits is 75600, while the sum is 37.

The square root of 135385273 is about 11635.5177366544. The cubic root of 135385273 is about 513.4803261043.

The spelling of 135385273 in words is "one hundred thirty-five million, three hundred eighty-five thousand, two hundred seventy-three".