125430449 has 2 divisors, whose sum is σ = 125430450. Its totient is φ = 125430448.

The previous prime is 125430443. The next prime is 125430463. The reversal of 125430449 is 944034521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118113424 + 7317025 = 10868^2 + 2705^2 .

It is an emirp because it is prime and its reverse (944034521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125430449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125430443) 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, 62715224 + 62715225.

It is an arithmetic number, because the mean of its divisors is an integer number (62715225).

Almost surely, 2^125430449 is an apocalyptic number.

It is an amenable number.

125430449 is a deficient number, since it is larger than the sum of its proper divisors (1).

125430449 is an equidigital number, since it uses as much as digits as its factorization.

125430449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 125430449 is about 11199.5736079549. The cubic root of 125430449 is about 500.5732744616.

The spelling of 125430449 in words is "one hundred twenty-five million, four hundred thirty thousand, four hundred forty-nine".