125041249 has 2 divisors, whose sum is σ = 125041250. Its totient is φ = 125041248.

The previous prime is 125041201. The next prime is 125041283. The reversal of 125041249 is 942140521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68310225 + 56731024 = 8265^2 + 7532^2 .

It is a cyclic number.

It is not a de Polignac number, because 125041249 - 2¹³ = 125033057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125047249) 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, 62520624 + 62520625.

It is an arithmetic number, because the mean of its divisors is an integer number (62520625).

Almost surely, 2^125041249 is an apocalyptic number.

It is an amenable number.

125041249 is a deficient number, since it is larger than the sum of its proper divisors (1).

125041249 is an equidigital number, since it uses as much as digits as its factorization.

125041249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 125041249 is about 11182.1844466991. The cubic root of 125041249 is about 500.0549926181.

The spelling of 125041249 in words is "one hundred twenty-five million, forty-one thousand, two hundred forty-nine".