135836293 has 2 divisors, whose sum is σ = 135836294. Its totient is φ = 135836292.

The previous prime is 135836249. The next prime is 135836299. The reversal of 135836293 is 392638531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100040004 + 35796289 = 10002^2 + 5983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135836293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135836299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67918146 + 67918147.

It is an arithmetic number, because the mean of its divisors is an integer number (67918147).

Almost surely, 2^135836293 is an apocalyptic number.

It is an amenable number.

135836293 is a deficient number, since it is larger than the sum of its proper divisors (1).

135836293 is an equidigital number, since it uses as much as digits as its factorization.

135836293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 135836293 is about 11654.8827964935. The cubic root of 135836293 is about 514.0498937168.

The spelling of 135836293 in words is "one hundred thirty-five million, eight hundred thirty-six thousand, two hundred ninety-three".