125702417 has 2 divisors, whose sum is σ = 125702418. Its totient is φ = 125702416.

The previous prime is 125702413. The next prime is 125702419. The reversal of 125702417 is 714207521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 14167696 = 10561^2 + 3764^2 .

It is a cyclic number.

It is not a de Polignac number, because 125702417 - 2² = 125702413 is a prime.

Together with 125702419, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125702417.

It is not a weakly prime, because it can be changed into another prime (125702411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62851208 + 62851209.

It is an arithmetic number, because the mean of its divisors is an integer number (62851209).

Almost surely, 2^125702417 is an apocalyptic number.

It is an amenable number.

125702417 is a deficient number, since it is larger than the sum of its proper divisors (1).

125702417 is an equidigital number, since it uses as much as digits as its factorization.

125702417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 125702417 is about 11211.7089241560. The cubic root of 125702417 is about 500.9348071819.

Adding to 125702417 its reverse (714207521), we get a palindrome (839909938).

The spelling of 125702417 in words is "one hundred twenty-five million, seven hundred two thousand, four hundred seventeen".