135875999 has 8 divisors (see below), whose sum is σ = 155560608. Its totient is φ = 116259840.

The previous prime is 135875989. The next prime is 135876031. The reversal of 135875999 is 999578531.

135875999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135875999 - 2¹² = 135871903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135875959) 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, 12782 + ... + 20859.

It is an arithmetic number, because the mean of its divisors is an integer number (19445076).

Almost surely, 2^135875999 is an apocalyptic number.

135875999 is a deficient number, since it is larger than the sum of its proper divisors (19684609).

135875999 is an equidigital number, since it uses as much as digits as its factorization.

135875999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34225.

The product of its digits is 3061800, while the sum is 56.

The square root of 135875999 is about 11656.5860782649. The cubic root of 135875999 is about 514.0999757585.

The spelling of 135875999 in words is "one hundred thirty-five million, eight hundred seventy-five thousand, nine hundred ninety-nine".