135199860 has 96 divisors (see below), whose sum is σ = 387459072. Its totient is φ = 35218560.

The previous prime is 135199859. The next prime is 135199891. The reversal of 135199860 is 68991531.

135199860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 809497 + ... + 809663.

It is an arithmetic number, because the mean of its divisors is an integer number (4036032).

Almost surely, 2^135199860 is an apocalyptic number.

135199860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135199860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193729536).

135199860 is an abundant number, since it is smaller than the sum of its proper divisors (252259212).

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

135199860 is a wasteful number, since it uses less digits than its factorization.

135199860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 135199860 is about 11627.5474628143. The cubic root of 135199860 is about 513.2458116187.

The spelling of 135199860 in words is "one hundred thirty-five million, one hundred ninety-nine thousand, eight hundred sixty".