135316273 has 4 divisors (see below), whose sum is σ = 137222208. Its totient is φ = 133410340.

The previous prime is 135316253. The next prime is 135316283. The reversal of 135316273 is 372613531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 372613531 = 17 ⋅21918443.

It is a cyclic number.

It is not a de Polignac number, because 135316273 - 2⁵ = 135316241 is a prime.

It is a super-2 number, since 2×135316273² = 36620987477221058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135316253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952861 + ... + 953002.

It is an arithmetic number, because the mean of its divisors is an integer number (34305552).

Almost surely, 2^135316273 is an apocalyptic number.

It is an amenable number.

135316273 is a deficient number, since it is larger than the sum of its proper divisors (1905935).

135316273 is an equidigital number, since it uses as much as digits as its factorization.

135316273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905934.

The product of its digits is 11340, while the sum is 31.

The square root of 135316273 is about 11632.5522994741. The cubic root of 135316273 is about 513.3930783988.

The spelling of 135316273 in words is "one hundred thirty-five million, three hundred sixteen thousand, two hundred seventy-three".