135109999 has 8 divisors (see below), whose sum is σ = 146385360. Its totient is φ = 124204416.

The previous prime is 135109993. The next prime is 135110011. The reversal of 135109999 is 999901531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135109999 - 2⁹ = 135109487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135109993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91684 + ... + 93145.

It is an arithmetic number, because the mean of its divisors is an integer number (18298170).

Almost surely, 2^135109999 is an apocalyptic number.

135109999 is a deficient number, since it is larger than the sum of its proper divisors (11275361).

135109999 is a wasteful number, since it uses less digits than its factorization.

135109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184889.

The product of its (nonzero) digits is 98415, while the sum is 46.

The square root of 135109999 is about 11623.6826780500. The cubic root of 135109999 is about 513.1320762845.

The spelling of 135109999 in words is "one hundred thirty-five million, one hundred nine thousand, nine hundred ninety-nine".