125966 has 4 divisors (see below), whose sum is σ = 188952. Its totient is φ = 62982.

The previous prime is 125963. The next prime is 126001. The reversal of 125966 is 669521.

125966 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669521 = 607 ⋅1103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31490 + ... + 31493.

It is an arithmetic number, because the mean of its divisors is an integer number (47238).

2¹²⁵⁹⁶⁶ is an apocalyptic number.

125966 is a deficient number, since it is larger than the sum of its proper divisors (62986).

125966 is an equidigital number, since it uses as much as digits as its factorization.

125966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62985.

The product of its digits is 3240, while the sum is 29.

The square root of 125966 is about 354.9168916803. The cubic root of 125966 is about 50.1284696284.

The spelling of 125966 in words is "one hundred twenty-five thousand, nine hundred sixty-six".