135696499 has 16 divisors (see below), whose sum is σ = 152150400. Its totient is φ = 120265344.

The previous prime is 135696479. The next prime is 135696521. The reversal of 135696499 is 994696531.

It is not a de Polignac number, because 135696499 - 2⁵ = 135696467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135696409) 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 in 15 ways as a sum of consecutive naturals, for example, 56644 + ... + 58990.

It is an arithmetic number, because the mean of its divisors is an integer number (9509400).

Almost surely, 2^135696499 is an apocalyptic number.

135696499 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135696499 is a deficient number, since it is larger than the sum of its proper divisors (16453901).

135696499 is a wasteful number, since it uses less digits than its factorization.

135696499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562.

The product of its digits is 1574640, while the sum is 52.

The square root of 135696499 is about 11648.8840238025. The cubic root of 135696499 is about 513.8734907959.

The spelling of 135696499 in words is "one hundred thirty-five million, six hundred ninety-six thousand, four hundred ninety-nine".