232109136 has 120 divisors (see below), whose sum is σ = 745517760. Its totient is φ = 66037248.

The previous prime is 232109131. The next prime is 232109167. The reversal of 232109136 is 631901232.

232109136 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232109131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411991 + ... + 412553.

It is an arithmetic number, because the mean of its divisors is an integer number (6212648).

Almost surely, 2^232109136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232109136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372758880).

232109136 is an abundant number, since it is smaller than the sum of its proper divisors (513408624).

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

232109136 is a wasteful number, since it uses less digits than its factorization.

232109136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 232109136 is about 15235.1283552191. The cubic root of 232109136 is about 614.5597007137.

The spelling of 232109136 in words is "two hundred thirty-two million, one hundred nine thousand, one hundred thirty-six".