125425247 has 2 divisors, whose sum is σ = 125425248. Its totient is φ = 125425246.

The previous prime is 125425243. The next prime is 125425249. The reversal of 125425247 is 742524521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125425247 - 2² = 125425243 is a prime.

It is a super-2 number, since 2×125425247² = 31462985170022018, which contains 22 as substring.

Together with 125425249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125425241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62712623 + 62712624.

It is an arithmetic number, because the mean of its divisors is an integer number (62712624).

Almost surely, 2^125425247 is an apocalyptic number.

125425247 is a deficient number, since it is larger than the sum of its proper divisors (1).

125425247 is an equidigital number, since it uses as much as digits as its factorization.

125425247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 32.

The square root of 125425247 is about 11199.3413645625. The cubic root of 125425247 is about 500.5663542435.

Adding to 125425247 its reverse (742524521), we get a palindrome (867949768).

The spelling of 125425247 in words is "one hundred twenty-five million, four hundred twenty-five thousand, two hundred forty-seven".