135193293 has 12 divisors (see below), whose sum is σ = 202512128. Its totient is φ = 90128700.

The previous prime is 135193229. The next prime is 135193327. The reversal of 135193293 is 392391531.

It is not a de Polignac number, because 135193293 - 2⁶ = 135193229 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 (135193393) 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 11 ways as a sum of consecutive naturals, for example, 277933 + ... + 278418.

Almost surely, 2^135193293 is an apocalyptic number.

It is an amenable number.

135193293 is a deficient number, since it is larger than the sum of its proper divisors (67318835).

135193293 is an frugal number, since it uses more digits than its factorization.

135193293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556366 (or 556354 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 135193293 is about 11627.2650696542. The cubic root of 135193293 is about 513.2375016006.

The spelling of 135193293 in words is "one hundred thirty-five million, one hundred ninety-three thousand, two hundred ninety-three".