13242547 has 2 divisors, whose sum is σ = 13242548. Its totient is φ = 13242546.

The previous prime is 13242529. The next prime is 13242587. The reversal of 13242547 is 74524231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13242547 is a prime.

It is not a weakly prime, because it can be changed into another prime (13242517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621273 + 6621274.

It is an arithmetic number, because the mean of its divisors is an integer number (6621274).

Almost surely, 2^13242547 is an apocalyptic number.

13242547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13242547 is an equidigital number, since it uses as much as digits as its factorization.

13242547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 13242547 is about 3639.0310523545. The cubic root of 13242547 is about 236.5867986357.

Adding to 13242547 its reverse (74524231), we get a palindrome (87766778).

The spelling of 13242547 in words is "thirteen million, two hundred forty-two thousand, five hundred forty-seven".