125667 has 6 divisors (see below), whose sum is σ = 181532. Its totient is φ = 83772.

The previous prime is 125659. The next prime is 125669. The reversal of 125667 is 766521.

It is not a de Polignac number, because 125667 - 2³ = 125659 is a prime.

It is a Duffinian number.

125667 is a lucky number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 125667.

It is not an unprimeable number, because it can be changed into a prime (125669) 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 5 ways as a sum of consecutive naturals, for example, 6973 + ... + 6990.

2¹²⁵⁶⁶⁷ is an apocalyptic number.

125667 is a deficient number, since it is larger than the sum of its proper divisors (55865).

125667 is a wasteful number, since it uses less digits than its factorization.

125667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13969 (or 13966 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 125667 is about 354.4954160493. The cubic root of 125667 is about 50.0887756178.

The spelling of 125667 in words is "one hundred twenty-five thousand, six hundred sixty-seven".