125566907 has 2 divisors, whose sum is σ = 125566908. Its totient is φ = 125566906.

The previous prime is 125566871. The next prime is 125566949. The reversal of 125566907 is 709665521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125566907 - 2²⁴ = 108789691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125562907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62783453 + 62783454.

It is an arithmetic number, because the mean of its divisors is an integer number (62783454).

Almost surely, 2^125566907 is an apocalyptic number.

125566907 is a deficient number, since it is larger than the sum of its proper divisors (1).

125566907 is an equidigital number, since it uses as much as digits as its factorization.

125566907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 125566907 is about 11205.6640588588. The cubic root of 125566907 is about 500.7547361734.

The spelling of 125566907 in words is "one hundred twenty-five million, five hundred sixty-six thousand, nine hundred seven".