135983093 has 4 divisors (see below), whose sum is σ = 136315980. Its totient is φ = 135650208.

The previous prime is 135983083. The next prime is 135983123. The reversal of 135983093 is 390389531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52388644 + 83594449 = 7238^2 + 9143^2 .

It is a cyclic number.

It is not a de Polignac number, because 135983093 - 2²⁶ = 68874229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135983093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135983053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165830 + ... + 166647.

It is an arithmetic number, because the mean of its divisors is an integer number (34078995).

Almost surely, 2^135983093 is an apocalyptic number.

It is an amenable number.

135983093 is a deficient number, since it is larger than the sum of its proper divisors (332887).

135983093 is an equidigital number, since it uses as much as digits as its factorization.

135983093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332886.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 135983093 is about 11661.1788855158. The cubic root of 135983093 is about 514.2350071221.

The spelling of 135983093 in words is "one hundred thirty-five million, nine hundred eighty-three thousand, ninety-three".