135161208 has 192 divisors, whose sum is σ = 460824000. Its totient is φ = 35562240.

The previous prime is 135161189. The next prime is 135161219. The reversal of 135161208 is 802161531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320838 + ... + 321258.

It is an arithmetic number, because the mean of its divisors is an integer number (2400125).

Almost surely, 2^135161208 is an apocalyptic number.

135161208 is a gapful number since it is divisible by the number (18) 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 135161208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230412000).

135161208 is an abundant number, since it is smaller than the sum of its proper divisors (325662792).

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

135161208 is a wasteful number, since it uses less digits than its factorization.

135161208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 135161208 is about 11625.8852566159. The cubic root of 135161208 is about 513.1968967063.

The spelling of 135161208 in words is "one hundred thirty-five million, one hundred sixty-one thousand, two hundred eight".