109531863 has 24 divisors (see below), whose sum is σ = 183001728. Its totient is φ = 61832592.

The previous prime is 109531847. The next prime is 109531871. The reversal of 109531863 is 368135901.

It is a happy number.

It is not a de Polignac number, because 109531863 - 2⁴ = 109531847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109531843) 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, 5245 + ... + 15702.

It is an arithmetic number, because the mean of its divisors is an integer number (7625072).

Almost surely, 2^109531863 is an apocalyptic number.

109531863 is a deficient number, since it is larger than the sum of its proper divisors (73469865).

109531863 is a wasteful number, since it uses less digits than its factorization.

109531863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043 (or 21040 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 109531863 is about 10465.7471305206. The cubic root of 109531863 is about 478.4613098174.

The spelling of 109531863 in words is "one hundred nine million, five hundred thirty-one thousand, eight hundred sixty-three".