23194109 has 2 divisors, whose sum is σ = 23194110. Its totient is φ = 23194108.

The previous prime is 23194063. The next prime is 23194111. The reversal of 23194109 is 90149132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 7812025 = 3922^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 23194109 - 2⁸ = 23193853 is a prime.

Together with 23194111, 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 (23194159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11597054 + 11597055.

It is an arithmetic number, because the mean of its divisors is an integer number (11597055).

Almost surely, 2^23194109 is an apocalyptic number.

It is an amenable number.

23194109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23194109 is an equidigital number, since it uses as much as digits as its factorization.

23194109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 23194109 is about 4816.0262665397. The cubic root of 23194109 is about 285.1844870971.

The spelling of 23194109 in words is "twenty-three million, one hundred ninety-four thousand, one hundred nine".