125266247 has 2 divisors, whose sum is σ = 125266248. Its totient is φ = 125266246.

The previous prime is 125266243. The next prime is 125266277. The reversal of 125266247 is 742662521.

It is a weak prime.

It is an emirp because it is prime and its reverse (742662521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125266247 - 2² = 125266243 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125266243) 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, 62633123 + 62633124.

It is an arithmetic number, because the mean of its divisors is an integer number (62633124).

Almost surely, 2^125266247 is an apocalyptic number.

125266247 is a deficient number, since it is larger than the sum of its proper divisors (1).

125266247 is an equidigital number, since it uses as much as digits as its factorization.

125266247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 125266247 is about 11192.2404816909. The cubic root of 125266247 is about 500.3547442535.

The spelling of 125266247 in words is "one hundred twenty-five million, two hundred sixty-six thousand, two hundred forty-seven".