13623541 has 2 divisors, whose sum is σ = 13623542. Its totient is φ = 13623540.

The previous prime is 13623523. The next prime is 13623559. The reversal of 13623541 is 14532631.

It is a balanced prime because it is at equal distance from previous prime (13623523) and next prime (13623559).

It can be written as a sum of positive squares in only one way, i.e., 10699441 + 2924100 = 3271^2 + 1710^2 .

It is an emirp because it is prime and its reverse (14532631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13623541 - 2⁵ = 13623509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13623581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6811770 + 6811771.

It is an arithmetic number, because the mean of its divisors is an integer number (6811771).

Almost surely, 2^13623541 is an apocalyptic number.

It is an amenable number.

13623541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13623541 is an equidigital number, since it uses as much as digits as its factorization.

13623541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 13623541 is about 3691.0081278697. The cubic root of 13623541 is about 238.8342834469.

The spelling of 13623541 in words is "thirteen million, six hundred twenty-three thousand, five hundred forty-one".