136883520 has 140 divisors (see below), whose sum is σ = 487010964. Its totient is φ = 36495360.

The previous prime is 136883503. The next prime is 136883531. The reversal of 136883520 is 25388631.

It can be written as a sum of positive squares in 2 ways, for example, as 32353344 + 104530176 = 5688^2 + 10224^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23280 + ... + 28560.

Almost surely, 2^136883520 is an apocalyptic number.

136883520 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 136883520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243505482).

136883520 is an abundant number, since it is smaller than the sum of its proper divisors (350127444).

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

136883520 is an equidigital number, since it uses as much as digits as its factorization.

136883520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310 (or 5291 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 136883520 is about 11699.7230736458. The cubic root of 136883520 is about 515.3675322862.

The spelling of 136883520 in words is "one hundred thirty-six million, eight hundred eighty-three thousand, five hundred twenty".