23781341 has 2 divisors, whose sum is σ = 23781342. Its totient is φ = 23781340.

The previous prime is 23781323. The next prime is 23781349. The reversal of 23781341 is 14318732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 3115225 = 4546^2 + 1765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23781341 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 (23781349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11890670 + 11890671.

It is an arithmetic number, because the mean of its divisors is an integer number (11890671).

Almost surely, 2^23781341 is an apocalyptic number.

It is an amenable number.

23781341 is a deficient number, since it is larger than the sum of its proper divisors (1).

23781341 is an equidigital number, since it uses as much as digits as its factorization.

23781341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 23781341 is about 4876.6116310406. The cubic root of 23781341 is about 287.5712377975.

The spelling of 23781341 in words is "twenty-three million, seven hundred eighty-one thousand, three hundred forty-one".