125681707 has 4 divisors (see below), whose sum is σ = 126083560. Its totient is φ = 125279856.

The previous prime is 125681681. The next prime is 125681723. The reversal of 125681707 is 707186521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125681707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125681747) 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, 200457 + ... + 201082.

It is an arithmetic number, because the mean of its divisors is an integer number (31520890).

Almost surely, 2^125681707 is an apocalyptic number.

125681707 is a deficient number, since it is larger than the sum of its proper divisors (401853).

125681707 is an equidigital number, since it uses as much as digits as its factorization.

125681707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401852.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 125681707 is about 11210.7852980958. The cubic root of 125681707 is about 500.9072953013.

The spelling of 125681707 in words is "one hundred twenty-five million, six hundred eighty-one thousand, seven hundred seven".