136802399 has 2 divisors, whose sum is σ = 136802400. Its totient is φ = 136802398.

The previous prime is 136802377. The next prime is 136802401. The reversal of 136802399 is 993208631.

136802399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (993208631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136802399 - 2⁸ = 136802143 is a prime.

Together with 136802401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136802999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68401199 + 68401200.

It is an arithmetic number, because the mean of its divisors is an integer number (68401200).

Almost surely, 2^136802399 is an apocalyptic number.

136802399 is a deficient number, since it is larger than the sum of its proper divisors (1).

136802399 is an equidigital number, since it uses as much as digits as its factorization.

136802399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 136802399 is about 11696.2557684073. The cubic root of 136802399 is about 515.2657051000.

The spelling of 136802399 in words is "one hundred thirty-six million, eight hundred two thousand, three hundred ninety-nine".