136560320 has 112 divisors (see below), whose sum is σ = 370990368. Its totient is φ = 47431680.

The previous prime is 136560317. The next prime is 136560329. The reversal of 136560320 is 23065631.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 136560320.

It is not an unprimeable number, because it can be changed into a prime (136560329) 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, 69755 + ... + 71685.

It is an arithmetic number, because the mean of its divisors is an integer number (3312414).

Almost surely, 2^136560320 is an apocalyptic number.

136560320 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 136560320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185495184).

136560320 is an abundant number, since it is smaller than the sum of its proper divisors (234430048).

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

136560320 is a wasteful number, since it uses less digits than its factorization.

136560320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 136560320 is about 11685.9026181121. The cubic root of 136560320 is about 514.9615957789.

The spelling of 136560320 in words is "one hundred thirty-six million, five hundred sixty thousand, three hundred twenty".