135583273 has 4 divisors (see below), whose sum is σ = 154952320. Its totient is φ = 116214228.

The previous prime is 135583271. The next prime is 135583291. The reversal of 135583273 is 372385531.

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 135583273 - 2¹ = 135583271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135583271) 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, 9684513 + ... + 9684526.

It is an arithmetic number, because the mean of its divisors is an integer number (38738080).

Almost surely, 2^135583273 is an apocalyptic number.

It is an amenable number.

135583273 is a deficient number, since it is larger than the sum of its proper divisors (19369047).

135583273 is an equidigital number, since it uses as much as digits as its factorization.

135583273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19369046.

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

The square root of 135583273 is about 11644.0230590634. The cubic root of 135583273 is about 513.7305246158.

The spelling of 135583273 in words is "one hundred thirty-five million, five hundred eighty-three thousand, two hundred seventy-three".