109809373 has 2 divisors, whose sum is σ = 109809374. Its totient is φ = 109809372.

The previous prime is 109809367. The next prime is 109809397. The reversal of 109809373 is 373908901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107060409 + 2748964 = 10347^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 109809373 - 2¹⁷ = 109678301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109809353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54904686 + 54904687.

It is an arithmetic number, because the mean of its divisors is an integer number (54904687).

Almost surely, 2^109809373 is an apocalyptic number.

It is an amenable number.

109809373 is a deficient number, since it is larger than the sum of its proper divisors (1).

109809373 is an equidigital number, since it uses as much as digits as its factorization.

109809373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 109809373 is about 10478.9967554151. The cubic root of 109809373 is about 478.8650456702.

The spelling of 109809373 in words is "one hundred nine million, eight hundred nine thousand, three hundred seventy-three".