135599000 has 32 divisors (see below), whose sum is σ = 317304000. Its totient is φ = 54239200.

The previous prime is 135598993. The next prime is 135599003. The reversal of 135599000 is 995531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135599003) 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, 66800 + ... + 68799.

It is an arithmetic number, because the mean of its divisors is an integer number (9915750).

Almost surely, 2^135599000 is an apocalyptic number.

135599000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135599000 is an abundant number, since it is smaller than the sum of its proper divisors (181705000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135599000 is a wasteful number, since it uses less digits than its factorization.

135599000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135620 (or 135606 counting only the distinct ones).

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 135599000 is about 11644.6983644919. The cubic root of 135599000 is about 513.7503872616.

The spelling of 135599000 in words is "one hundred thirty-five million, five hundred ninety-nine thousand".