125000703689 has 4 divisors (see below), whose sum is σ = 128379101124. Its totient is φ = 121622306256.

The previous prime is 125000703683. The next prime is 125000703701. The reversal of 125000703689 is 986307000521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66516536464 + 58484167225 = 257908^2 + 241835^2 .

It is a cyclic number.

It is not a de Polignac number, because 125000703689 - 2¹⁶ = 125000638153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125000703683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1689198662 + ... + 1689198735.

It is an arithmetic number, because the mean of its divisors is an integer number (32094775281).

Almost surely, 2^125000703689 is an apocalyptic number.

It is an amenable number.

125000703689 is a deficient number, since it is larger than the sum of its proper divisors (3378397435).

125000703689 is an equidigital number, since it uses as much as digits as its factorization.

125000703689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378397434.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 125000703689 in words is "one hundred twenty-five billion, seven hundred three thousand, six hundred eighty-nine".