13516823 has 2 divisors, whose sum is σ = 13516824. Its totient is φ = 13516822.

The previous prime is 13516787. The next prime is 13516829. The reversal of 13516823 is 32861531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13516823 - 2⁶ = 13516759 is a prime.

It is a Sophie Germain prime.

It is equal to p₈₈₀₆₄₃ and since 13516823 and 880643 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13516829) 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, 6758411 + 6758412.

It is an arithmetic number, because the mean of its divisors is an integer number (6758412).

Almost surely, 2^13516823 is an apocalyptic number.

13516823 is a deficient number, since it is larger than the sum of its proper divisors (1).

13516823 is an equidigital number, since it uses as much as digits as its factorization.

13516823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 13516823 is about 3676.5232217409. The cubic root of 13516823 is about 238.2090235835.

The spelling of 13516823 in words is "thirteen million, five hundred sixteen thousand, eight hundred twenty-three".