125747 has 4 divisors (see below), whose sum is σ = 128856. Its totient is φ = 122640.

The previous prime is 125743. The next prime is 125753. The reversal of 125747 is 747521.

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

It is a cyclic number.

It is not a de Polignac number, because 125747 - 2² = 125743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (32214).

2¹²⁵⁷⁴⁷ is an apocalyptic number.

125747 is a deficient number, since it is larger than the sum of its proper divisors (3109).

125747 is an equidigital number, since it uses as much as digits as its factorization.

125747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 1960, while the sum is 26.

The square root of 125747 is about 354.6082345350. The cubic root of 125747 is about 50.0994022529.

The spelling of 125747 in words is "one hundred twenty-five thousand, seven hundred forty-seven".