136533320 has 128 divisors (see below), whose sum is σ = 387797760. Its totient is φ = 42024960.

The previous prime is 136533301. The next prime is 136533329. The reversal of 136533320 is 23335631.

It is a self number, because there is not a number n which added to its sum of digits gives 136533320.

It is not an unprimeable number, because it can be changed into a prime (136533329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298532 + ... + 298988.

It is an arithmetic number, because the mean of its divisors is an integer number (3029670).

Almost surely, 2^136533320 is an apocalyptic number.

136533320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136533320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193898880).

136533320 is an abundant number, since it is smaller than the sum of its proper divisors (251264440).

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

136533320 is a wasteful number, since it uses less digits than its factorization.

136533320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 136533320 is about 11684.7473228992. The cubic root of 136533320 is about 514.9276550277.

Adding to 136533320 its reverse (23335631), we get a palindrome (159868951).

The spelling of 136533320 in words is "one hundred thirty-six million, five hundred thirty-three thousand, three hundred twenty".