125635259 has 2 divisors, whose sum is σ = 125635260. Its totient is φ = 125635258.

The previous prime is 125635229. The next prime is 125635297. The reversal of 125635259 is 952536521.

It is an a-pointer prime, because the next prime (125635297) can be obtained adding 125635259 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125635259 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125635229) 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, 62817629 + 62817630.

It is an arithmetic number, because the mean of its divisors is an integer number (62817630).

Almost surely, 2^125635259 is an apocalyptic number.

125635259 is a deficient number, since it is larger than the sum of its proper divisors (1).

125635259 is an equidigital number, since it uses as much as digits as its factorization.

125635259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 38.

The square root of 125635259 is about 11208.7135301068. The cubic root of 125635259 is about 500.8455811788.

The spelling of 125635259 in words is "one hundred twenty-five million, six hundred thirty-five thousand, two hundred fifty-nine".