23000261 has 2 divisors, whose sum is σ = 23000262. Its totient is φ = 23000260.

The previous prime is 23000189. The next prime is 23000287. The reversal of 23000261 is 16200032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 2660161 = 4510^2 + 1631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23000261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23000291) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500130 + 11500131.

It is an arithmetic number, because the mean of its divisors is an integer number (11500131).

Almost surely, 2^23000261 is an apocalyptic number.

It is an amenable number.

23000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23000261 is an equidigital number, since it uses as much as digits as its factorization.

23000261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23000261 is about 4795.8587343666. The cubic root of 23000261 is about 284.3877737047.

Adding to 23000261 its reverse (16200032), we get a palindrome (39200293).

The spelling of 23000261 in words is "twenty-three million, two hundred sixty-one", and thus it is an aban number.