136532880 has 120 divisors (see below), whose sum is σ = 500235840. Its totient is φ = 33096960.

The previous prime is 136532873. The next prime is 136532909. The reversal of 136532880 is 88235631.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 700 + ... + 16539.

It is an arithmetic number, because the mean of its divisors is an integer number (4168632).

Almost surely, 2^136532880 is an apocalyptic number.

136532880 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 136532880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250117920).

136532880 is an abundant number, since it is smaller than the sum of its proper divisors (363702960).

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

136532880 is a wasteful number, since it uses less digits than its factorization.

136532880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17269 (or 17260 counting only the distinct ones).

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

The square root of 136532880 is about 11684.7284949202. The cubic root of 136532880 is about 514.9271018821.

The spelling of 136532880 in words is "one hundred thirty-six million, five hundred thirty-two thousand, eight hundred eighty".