109432 has 8 divisors (see below), whose sum is σ = 205200. Its totient is φ = 54712.
The previous prime is 109423. The next prime is 109433. The reversal of 109432 is 234901.
It is a tau number, because it is divible by the number of its divisors (8).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (109433) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6832 + ... + 6847.
It is an arithmetic number, because the mean of its divisors is an integer number (25650).
2109432 is an apocalyptic number.
It is an amenable number.
109432 is a deficient number, since it is larger than the sum of its proper divisors (95768).
109432 is a wasteful number, since it uses less digits than its factorization.
109432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13685 (or 13681 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 109432 is about 330.8050785584. The cubic root of 109432 is about 47.8315857134.
The spelling of 109432 in words is "one hundred nine thousand, four hundred thirty-two".
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