135161992 has 24 divisors (see below), whose sum is σ = 294805710. Its totient is φ = 57926400.

The previous prime is 135161977. The next prime is 135162017. The reversal of 135161992 is 299161531.

It is a happy number.

135161992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 122014116 + 13147876 = 11046^2 + 3626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172009 + ... + 172792.

Almost surely, 2^135161992 is an apocalyptic number.

It is an amenable number.

135161992 is an abundant number, since it is smaller than the sum of its proper divisors (159643718).

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

135161992 is a wasteful number, since it uses less digits than its factorization.

135161992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344821 (or 344810 counting only the distinct ones).

The product of its digits is 14580, while the sum is 37.

The square root of 135161992 is about 11625.9189744295. The cubic root of 135161992 is about 513.1978889673.

The spelling of 135161992 in words is "one hundred thirty-five million, one hundred sixty-one thousand, nine hundred ninety-two".