109045709 has 2 divisors, whose sum is σ = 109045710. Its totient is φ = 109045708.

The previous prime is 109045681. The next prime is 109045753. The reversal of 109045709 is 907540901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72624484 + 36421225 = 8522^2 + 6035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109045709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109045309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54522854 + 54522855.

It is an arithmetic number, because the mean of its divisors is an integer number (54522855).

Almost surely, 2^109045709 is an apocalyptic number.

It is an amenable number.

109045709 is a deficient number, since it is larger than the sum of its proper divisors (1).

109045709 is an equidigital number, since it uses as much as digits as its factorization.

109045709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 109045709 is about 10442.4953435470. The cubic root of 109045709 is about 477.7523810409.

The spelling of 109045709 in words is "one hundred nine million, forty-five thousand, seven hundred nine".