125011247 has 2 divisors, whose sum is σ = 125011248. Its totient is φ = 125011246.

The previous prime is 125011223. The next prime is 125011283. The reversal of 125011247 is 742110521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125011247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125011297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62505623 + 62505624.

It is an arithmetic number, because the mean of its divisors is an integer number (62505624).

Almost surely, 2^125011247 is an apocalyptic number.

125011247 is a deficient number, since it is larger than the sum of its proper divisors (1).

125011247 is an equidigital number, since it uses as much as digits as its factorization.

125011247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 125011247 is about 11180.8428573163. The cubic root of 125011247 is about 500.0149955503.

Adding to 125011247 its reverse (742110521), we get a palindrome (867121768).

The spelling of 125011247 in words is "one hundred twenty-five million, eleven thousand, two hundred forty-seven".