136155520 has 64 divisors (see below), whose sum is σ = 342658800. Its totient is φ = 51591168.

The previous prime is 136155511. The next prime is 136155527. The reversal of 136155520 is 25551631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136155527) 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, 6562 + ... + 17758.

Almost surely, 2^136155520 is an apocalyptic number.

136155520 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 136155520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171329400).

136155520 is an abundant number, since it is smaller than the sum of its proper divisors (206503280).

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

136155520 is a wasteful number, since it uses less digits than its factorization.

136155520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235 (or 11223 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 136155520 is about 11668.5697495451. The cubic root of 136155520 is about 514.4522658683.

The spelling of 136155520 in words is "one hundred thirty-six million, one hundred fifty-five thousand, five hundred twenty".