13125947 has 2 divisors, whose sum is σ = 13125948. Its totient is φ = 13125946.

The previous prime is 13125923. The next prime is 13125961. The reversal of 13125947 is 74952131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13125947 - 2⁶ = 13125883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13125997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562973 + 6562974.

It is an arithmetic number, because the mean of its divisors is an integer number (6562974).

Almost surely, 2^13125947 is an apocalyptic number.

13125947 is a deficient number, since it is larger than the sum of its proper divisors (1).

13125947 is an equidigital number, since it uses as much as digits as its factorization.

13125947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 13125947 is about 3622.9748826068. The cubic root of 13125947 is about 235.8903720936.

The spelling of 13125947 in words is "thirteen million, one hundred twenty-five thousand, nine hundred forty-seven".