23439541 has 2 divisors, whose sum is σ = 23439542. Its totient is φ = 23439540.

The previous prime is 23439529. The next prime is 23439547. The reversal of 23439541 is 14593432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 2187441 = 4610^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 23439541 - 2⁹ = 23439029 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 (23439547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11719770 + 11719771.

It is an arithmetic number, because the mean of its divisors is an integer number (11719771).

Almost surely, 2^23439541 is an apocalyptic number.

It is an amenable number.

23439541 is a deficient number, since it is larger than the sum of its proper divisors (1).

23439541 is an equidigital number, since it uses as much as digits as its factorization.

23439541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 23439541 is about 4841.4399717439. The cubic root of 23439541 is about 286.1868674613.

The spelling of 23439541 in words is "twenty-three million, four hundred thirty-nine thousand, five hundred forty-one".