109097939 has 4 divisors (see below), whose sum is σ = 110412456. Its totient is φ = 107783424.

The previous prime is 109097929. The next prime is 109097983. The reversal of 109097939 is 939790901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109097939 - 2⁸ = 109097683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109097893 and 109097902.

It is not an unprimeable number, because it can be changed into a prime (109097929) 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 3 ways as a sum of consecutive naturals, for example, 657134 + ... + 657299.

It is an arithmetic number, because the mean of its divisors is an integer number (27603114).

Almost surely, 2^109097939 is an apocalyptic number.

109097939 is a deficient number, since it is larger than the sum of its proper divisors (1314517).

109097939 is an equidigital number, since it uses as much as digits as its factorization.

109097939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314516.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 109097939 is about 10444.9958831969. The cubic root of 109097939 is about 477.8286457688.

The spelling of 109097939 in words is "one hundred nine million, ninety-seven thousand, nine hundred thirty-nine".