109531056 has 60 divisors (see below), whose sum is σ = 289383512. Its totient is φ = 35698944.

The previous prime is 109531043. The next prime is 109531069. The reversal of 109531056 is 650135901.

It is an interprime number because it is at equal distance from previous prime (109531043) and next prime (109531069).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105516 + ... + 106548.

Almost surely, 2^109531056 is an apocalyptic number.

109531056 is a gapful number since it is divisible by the number (16) 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 109531056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144691756).

109531056 is an abundant number, since it is smaller than the sum of its proper divisors (179852456).

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

109531056 is a wasteful number, since it uses less digits than its factorization.

109531056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 109531056 is about 10465.7085761070. The cubic root of 109531056 is about 478.4601347583.

Adding to 109531056 its reverse (650135901), we get a palindrome (759666957).

The spelling of 109531056 in words is "one hundred nine million, five hundred thirty-one thousand, fifty-six".