135403399 has 2 divisors, whose sum is σ = 135403400. Its totient is φ = 135403398.

The previous prime is 135403379. The next prime is 135403403. The reversal of 135403399 is 993304531.

It is a strong prime.

It is an emirp because it is prime and its reverse (993304531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135403399 - 2⁹ = 135402887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135403339) 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 as a sum of consecutive naturals, namely, 67701699 + 67701700.

It is an arithmetic number, because the mean of its divisors is an integer number (67701700).

Almost surely, 2^135403399 is an apocalyptic number.

135403399 is a deficient number, since it is larger than the sum of its proper divisors (1).

135403399 is an equidigital number, since it uses as much as digits as its factorization.

135403399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 135403399 is about 11636.2966187701. The cubic root of 135403399 is about 513.5032407804.

The spelling of 135403399 in words is "one hundred thirty-five million, four hundred three thousand, three hundred ninety-nine".