12509747 has 2 divisors, whose sum is σ = 12509748. Its totient is φ = 12509746.

The previous prime is 12509741. The next prime is 12509753. The reversal of 12509747 is 74790521.

It is a balanced prime because it is at equal distance from previous prime (12509741) and next prime (12509753).

It is a cyclic number.

It is not a de Polignac number, because 12509747 - 2⁶ = 12509683 is a prime.

It is not a weakly prime, because it can be changed into another prime (12509741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6254873 + 6254874.

It is an arithmetic number, because the mean of its divisors is an integer number (6254874).

Almost surely, 2^12509747 is an apocalyptic number.

12509747 is a deficient number, since it is larger than the sum of its proper divisors (1).

12509747 is an equidigital number, since it uses as much as digits as its factorization.

12509747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 12509747 is about 3536.9120712848. The cubic root of 12509747 is about 232.1397480970.

The spelling of 12509747 in words is "twelve million, five hundred nine thousand, seven hundred forty-seven".