135530273 has 8 divisors (see below), whose sum is σ = 144821160. Its totient is φ = 126385920.

The previous prime is 135530261. The next prime is 135530293. The reversal of 135530273 is 372035531.

It can be written as a sum of positive squares in 4 ways, for example, as 74252689 + 61277584 = 8617^2 + 7828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135530273 - 2¹² = 135526177 is a prime.

It is a super-3 number, since 3×135530273³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135530293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34718 + ... + 38423.

It is an arithmetic number, because the mean of its divisors is an integer number (18102645).

Almost surely, 2^135530273 is an apocalyptic number.

It is an amenable number.

135530273 is a deficient number, since it is larger than the sum of its proper divisors (9290887).

135530273 is a wasteful number, since it uses less digits than its factorization.

135530273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73267.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 135530273 is about 11641.7469908945. The cubic root of 135530273 is about 513.6635761745.

The spelling of 135530273 in words is "one hundred thirty-five million, five hundred thirty thousand, two hundred seventy-three".