135531984 has 40 divisors (see below), whose sum is σ = 400143040. Its totient is φ = 38723328.

The previous prime is 135531983. The next prime is 135532003. The reversal of 135531984 is 489135531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135531983) 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, 201349 + ... + 202020.

It is an arithmetic number, because the mean of its divisors is an integer number (10003576).

Almost surely, 2^135531984 is an apocalyptic number.

135531984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135531984 is an abundant number, since it is smaller than the sum of its proper divisors (264611056).

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

135531984 is a wasteful number, since it uses less digits than its factorization.

135531984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403387 (or 403381 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 135531984 is about 11641.8204761970. The cubic root of 135531984 is about 513.6657377449.

The spelling of 135531984 in words is "one hundred thirty-five million, five hundred thirty-one thousand, nine hundred eighty-four".