135699868 has 24 divisors (see below), whose sum is σ = 247907744. Its totient is φ = 64929600.

The previous prime is 135699853. The next prime is 135699917. The reversal of 135699868 is 868996531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513 + ... + 16543.

Almost surely, 2^135699868 is an apocalyptic number.

It is an amenable number.

135699868 is a deficient number, since it is larger than the sum of its proper divisors (112207876).

135699868 is a wasteful number, since it uses less digits than its factorization.

135699868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15133 (or 15131 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 55.

The square root of 135699868 is about 11649.0286290317. The cubic root of 135699868 is about 513.8777434860.

The spelling of 135699868 in words is "one hundred thirty-five million, six hundred ninety-nine thousand, eight hundred sixty-eight".