23193109 has 2 divisors, whose sum is σ = 23193110. Its totient is φ = 23193108.

The previous prime is 23193103. The next prime is 23193169. The reversal of 23193109 is 90139132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20958084 + 2235025 = 4578^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 23193109 - 2³ = 23193101 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 (23193101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11596554 + 11596555.

It is an arithmetic number, because the mean of its divisors is an integer number (11596555).

Almost surely, 2^23193109 is an apocalyptic number.

It is an amenable number.

23193109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23193109 is an equidigital number, since it uses as much as digits as its factorization.

23193109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 23193109 is about 4815.9224453888. The cubic root of 23193109 is about 285.1803885192.

The spelling of 23193109 in words is "twenty-three million, one hundred ninety-three thousand, one hundred nine".