109007881 has 4 divisors (see below), whose sum is σ = 111542992. Its totient is φ = 106472772.

The previous prime is 109007867. The next prime is 109007903. The reversal of 109007881 is 188700901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109007881 - 2⁹ = 109007369 is a prime.

It is a super-2 number, since 2×109007881² = 23765436240220322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109007581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267491 + ... + 1267576.

It is an arithmetic number, because the mean of its divisors is an integer number (27885748).

Almost surely, 2^109007881 is an apocalyptic number.

It is an amenable number.

109007881 is a deficient number, since it is larger than the sum of its proper divisors (2535111).

109007881 is an equidigital number, since it uses as much as digits as its factorization.

109007881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535110.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 109007881 is about 10440.6839335362. The cubic root of 109007881 is about 477.6971304877.

It can be divided in two parts, 10900 and 7881, that added together give a palindrome (18781).

The spelling of 109007881 in words is "one hundred nine million, seven thousand, eight hundred eighty-one".