109433187 has 10 divisors (see below), whose sum is σ = 163474388. Its totient is φ = 72955404.

The previous prime is 109433119. The next prime is 109433189. The reversal of 109433187 is 781334901.

It is a happy number.

It is not a de Polignac number, because 109433187 - 2⁸ = 109432931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109433189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 675433 + ... + 675594.

Almost surely, 2^109433187 is an apocalyptic number.

109433187 is a deficient number, since it is larger than the sum of its proper divisors (54041201).

109433187 is an equidigital number, since it uses as much as digits as its factorization.

109433187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351039 (or 1351030 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 109433187 is about 10461.0318324724. The cubic root of 109433187 is about 478.3175865458.

The spelling of 109433187 in words is "one hundred nine million, four hundred thirty-three thousand, one hundred eighty-seven".