135836399 has 2 divisors, whose sum is σ = 135836400. Its totient is φ = 135836398.

The previous prime is 135836387. The next prime is 135836411. The reversal of 135836399 is 993638531.

135836399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (135836387) and next prime (135836411).

It is a cyclic number.

It is not a de Polignac number, because 135836399 - 2⁴ = 135836383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135836359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67918199 + 67918200.

It is an arithmetic number, because the mean of its divisors is an integer number (67918200).

Almost surely, 2^135836399 is an apocalyptic number.

135836399 is a deficient number, since it is larger than the sum of its proper divisors (1).

135836399 is an equidigital number, since it uses as much as digits as its factorization.

135836399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 47.

The square root of 135836399 is about 11654.8873439429. The cubic root of 135836399 is about 514.0500274299.

The spelling of 135836399 in words is "one hundred thirty-five million, eight hundred thirty-six thousand, three hundred ninety-nine".