109568939 has 2 divisors, whose sum is σ = 109568940. Its totient is φ = 109568938.

The previous prime is 109568917. The next prime is 109568957. The reversal of 109568939 is 939865901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109568939 - 2²⁴ = 92791723 is a prime.

It is not a weakly prime, because it can be changed into another prime (109568999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54784469 + 54784470.

It is an arithmetic number, because the mean of its divisors is an integer number (54784470).

Almost surely, 2^109568939 is an apocalyptic number.

109568939 is a deficient number, since it is larger than the sum of its proper divisors (1).

109568939 is an equidigital number, since it uses as much as digits as its factorization.

109568939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 109568939 is about 10467.5182827641. The cubic root of 109568939 is about 478.5152893318.

The spelling of 109568939 in words is "one hundred nine million, five hundred sixty-eight thousand, nine hundred thirty-nine".