23199613 has 2 divisors, whose sum is σ = 23199614. Its totient is φ = 23199612.

The previous prime is 23199601. The next prime is 23199677. The reversal of 23199613 is 31699132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20775364 + 2424249 = 4558^2 + 1557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23199613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23190613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599806 + 11599807.

It is an arithmetic number, because the mean of its divisors is an integer number (11599807).

Almost surely, 2^23199613 is an apocalyptic number.

It is an amenable number.

23199613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23199613 is an equidigital number, since it uses as much as digits as its factorization.

23199613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 34.

The square root of 23199613 is about 4816.5976580985. The cubic root of 23199613 is about 285.2070435613.

The spelling of 23199613 in words is "twenty-three million, one hundred ninety-nine thousand, six hundred thirteen".