135440732 has 12 divisors (see below), whose sum is σ = 270881520. Its totient is φ = 58046016.

The previous prime is 135440731. The next prime is 135440743. The reversal of 135440732 is 237044531.

It is a happy number.

135440732 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 135440695 and 135440704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135440731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418557 + ... + 2418612.

It is an arithmetic number, because the mean of its divisors is an integer number (22573460).

Almost surely, 2^135440732 is an apocalyptic number.

It is an amenable number.

135440732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135440732 is a wasteful number, since it uses less digits than its factorization.

135440732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837180 (or 4837178 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 135440732 is about 11637.9006697944. The cubic root of 135440732 is about 513.5504302774.

The spelling of 135440732 in words is "one hundred thirty-five million, four hundred forty thousand, seven hundred thirty-two".