107942309 has 2 divisors, whose sum is σ = 107942310. Its totient is φ = 107942308.

The previous prime is 107942273. The next prime is 107942311. The reversal of 107942309 is 903249701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105062500 + 2879809 = 10250^2 + 1697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107942309 is a prime.

Together with 107942311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107942369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53971154 + 53971155.

It is an arithmetic number, because the mean of its divisors is an integer number (53971155).

Almost surely, 2^107942309 is an apocalyptic number.

It is an amenable number.

107942309 is a deficient number, since it is larger than the sum of its proper divisors (1).

107942309 is an equidigital number, since it uses as much as digits as its factorization.

107942309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 107942309 is about 10389.5288151100. The cubic root of 107942309 is about 476.1355053448.

The spelling of 107942309 in words is "one hundred seven million, nine hundred forty-two thousand, three hundred nine".