125765947 has 2 divisors, whose sum is σ = 125765948. Its totient is φ = 125765946.

The previous prime is 125765879. The next prime is 125765971. The reversal of 125765947 is 749567521.

It is a strong prime.

It is an emirp because it is prime and its reverse (749567521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125765947 - 2¹¹ = 125763899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125765897 and 125765906.

It is not a weakly prime, because it can be changed into another prime (125765147) 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, 62882973 + 62882974.

It is an arithmetic number, because the mean of its divisors is an integer number (62882974).

Almost surely, 2^125765947 is an apocalyptic number.

125765947 is a deficient number, since it is larger than the sum of its proper divisors (1).

125765947 is an equidigital number, since it uses as much as digits as its factorization.

125765947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 46.

The square root of 125765947 is about 11214.5417650477. The cubic root of 125765947 is about 501.0191837839.

The spelling of 125765947 in words is "one hundred twenty-five million, seven hundred sixty-five thousand, nine hundred forty-seven".