135440580 has 48 divisors (see below), whose sum is σ = 413711424. Its totient is φ = 32833920.

The previous prime is 135440579. The next prime is 135440587. The reversal of 135440580 is 85044531.

135440580 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (135440587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101947 + ... + 103266.

It is an arithmetic number, because the mean of its divisors is an integer number (8618988).

Almost surely, 2^135440580 is an apocalyptic number.

135440580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135440580 is an abundant number, since it is smaller than the sum of its proper divisors (278270844).

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

135440580 is a wasteful number, since it uses less digits than its factorization.

135440580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205236 (or 205234 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 135440580 is about 11637.8941394051. The cubic root of 135440580 is about 513.5502381646.

The spelling of 135440580 in words is "one hundred thirty-five million, four hundred forty thousand, five hundred eighty".