135131948 has 24 divisors (see below), whose sum is σ = 274848000. Its totient is φ = 56931408.

The previous prime is 135131921. The next prime is 135131951. The reversal of 135131948 is 849131531.

135131948 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39248 + ... + 42551.

It is an arithmetic number, because the mean of its divisors is an integer number (11452000).

Almost surely, 2^135131948 is an apocalyptic number.

It is an amenable number.

135131948 is an abundant number, since it is smaller than the sum of its proper divisors (139716052).

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

135131948 is a wasteful number, since it uses less digits than its factorization.

135131948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81869 (or 81867 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 135131948 is about 11624.6267897081. The cubic root of 135131948 is about 513.1598613638.

The spelling of 135131948 in words is "one hundred thirty-five million, one hundred thirty-one thousand, nine hundred forty-eight".