13776541 has 2 divisors, whose sum is σ = 13776542. Its totient is φ = 13776540.

The previous prime is 13776523. The next prime is 13776557. The reversal of 13776541 is 14567731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8732025 + 5044516 = 2955^2 + 2246^2 .

It is a cyclic number.

It is not a de Polignac number, because 13776541 - 2¹⁷ = 13645469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13776497 and 13776506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13773541) 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, 6888270 + 6888271.

It is an arithmetic number, because the mean of its divisors is an integer number (6888271).

Almost surely, 2^13776541 is an apocalyptic number.

It is an amenable number.

13776541 is a deficient number, since it is larger than the sum of its proper divisors (1).

13776541 is an equidigital number, since it uses as much as digits as its factorization.

13776541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 34.

The square root of 13776541 is about 3711.6763059297. The cubic root of 13776541 is about 239.7250381127.

The spelling of 13776541 in words is "thirteen million, seven hundred seventy-six thousand, five hundred forty-one".