13547423 has 2 divisors, whose sum is σ = 13547424. Its totient is φ = 13547422.

The previous prime is 13547389. The next prime is 13547431. The reversal of 13547423 is 32474531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13547423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13547123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6773711 + 6773712.

It is an arithmetic number, because the mean of its divisors is an integer number (6773712).

Almost surely, 2^13547423 is an apocalyptic number.

13547423 is a deficient number, since it is larger than the sum of its proper divisors (1).

13547423 is an equidigital number, since it uses as much as digits as its factorization.

13547423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 13547423 is about 3680.6824095540. The cubic root of 13547423 is about 238.3886442555.

The spelling of 13547423 in words is "thirteen million, five hundred forty-seven thousand, four hundred twenty-three".