125566697 has 2 divisors, whose sum is σ = 125566698. Its totient is φ = 125566696.

The previous prime is 125566673. The next prime is 125566703. The reversal of 125566697 is 796665521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114404416 + 11162281 = 10696^2 + 3341^2 .

It is a cyclic number.

It is not a de Polignac number, because 125566697 - 2²⁴ = 108789481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125566667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62783348 + 62783349.

It is an arithmetic number, because the mean of its divisors is an integer number (62783349).

Almost surely, 2^125566697 is an apocalyptic number.

It is an amenable number.

125566697 is a deficient number, since it is larger than the sum of its proper divisors (1).

125566697 is an equidigital number, since it uses as much as digits as its factorization.

125566697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 47.

The square root of 125566697 is about 11205.6546885936. The cubic root of 125566697 is about 500.7544570166.

The spelling of 125566697 in words is "one hundred twenty-five million, five hundred sixty-six thousand, six hundred ninety-seven".