125871609307 has 2 divisors, whose sum is σ = 125871609308. Its totient is φ = 125871609306.

The previous prime is 125871609233. The next prime is 125871609337. The reversal of 125871609307 is 703906178521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125871609307 is a prime.

It is not a weakly prime, because it can be changed into another prime (125871609337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62935804653 + 62935804654.

It is an arithmetic number, because the mean of its divisors is an integer number (62935804654).

Almost surely, 2^125871609307 is an apocalyptic number.

125871609307 is a deficient number, since it is larger than the sum of its proper divisors (1).

125871609307 is an equidigital number, since it uses as much as digits as its factorization.

125871609307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 125871609307 in words is "one hundred twenty-five billion, eight hundred seventy-one million, six hundred nine thousand, three hundred seven".