135558320 has 40 divisors (see below), whose sum is σ = 328880736. Its totient is φ = 51865088.

The previous prime is 135558301. The next prime is 135558329. The reversal of 135558320 is 23855531.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (135558329) 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, 34997 + ... + 38676.

Almost surely, 2^135558320 is an apocalyptic number.

135558320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135558320 is an abundant number, since it is smaller than the sum of its proper divisors (193322416).

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

135558320 is a wasteful number, since it uses less digits than its factorization.

135558320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73709 (or 73703 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 135558320 is about 11642.9515158314. The cubic root of 135558320 is about 513.6990067056.

The spelling of 135558320 in words is "one hundred thirty-five million, five hundred fifty-eight thousand, three hundred twenty".