94109 has 2 divisors, whose sum is σ = 94110. Its totient is φ = 94108.

The previous prime is 94099. The next prime is 94111. The reversal of 94109 is 90149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52900 + 41209 = 230^2 + 203^2 .

It is an emirp because it is prime and its reverse (90149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94109 - 2¹⁶ = 28573 is a prime.

Together with 94111, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47054 + 47055.

It is an arithmetic number, because the mean of its divisors is an integer number (47055).

2⁹⁴¹⁰⁹ is an apocalyptic number.

It is an amenable number.

94109 is a deficient number, since it is larger than the sum of its proper divisors (1).

94109 is an equidigital number, since it uses as much as digits as its factorization.

94109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 94109 is about 306.7719022336. The cubic root of 94109 is about 45.4859272987.

The spelling of 94109 in words is "ninety-four thousand, one hundred nine".