320135193 has 32 divisors (see below), whose sum is σ = 543179520. Its totient is φ = 182545920.

The previous prime is 320135191. The next prime is 320135203. The reversal of 320135193 is 391531023.

It is a happy number.

It is not a de Polignac number, because 320135193 - 2¹ = 320135191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320135191) 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 31 ways as a sum of consecutive naturals, for example, 103753 + ... + 106793.

It is an arithmetic number, because the mean of its divisors is an integer number (16974360).

Almost surely, 2^320135193 is an apocalyptic number.

It is an amenable number.

320135193 is a deficient number, since it is larger than the sum of its proper divisors (223044327).

320135193 is a wasteful number, since it uses less digits than its factorization.

320135193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 320135193 is about 17892.3221801979. The cubic root of 320135193 is about 684.0866887665.

The spelling of 320135193 in words is "three hundred twenty million, one hundred thirty-five thousand, one hundred ninety-three".