125532691 has 2 divisors, whose sum is σ = 125532692. Its totient is φ = 125532690.

The previous prime is 125532683. The next prime is 125532713. The reversal of 125532691 is 196235521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125532691 - 2³ = 125532683 is a prime.

It is not a weakly prime, because it can be changed into another prime (125532391) 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, 62766345 + 62766346.

It is an arithmetic number, because the mean of its divisors is an integer number (62766346).

Almost surely, 2^125532691 is an apocalyptic number.

125532691 is a deficient number, since it is larger than the sum of its proper divisors (1).

125532691 is an equidigital number, since it uses as much as digits as its factorization.

125532691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 34.

The square root of 125532691 is about 11204.1372269354. The cubic root of 125532691 is about 500.7092481252.

The spelling of 125532691 in words is "one hundred twenty-five million, five hundred thirty-two thousand, six hundred ninety-one".