125659 has 2 divisors, whose sum is σ = 125660. Its totient is φ = 125658.

The previous prime is 125651. The next prime is 125669. The reversal of 125659 is 956521.

It is a weak prime.

It is an emirp because it is prime and its reverse (956521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125659 - 2³ = 125651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62829 + 62830.

It is an arithmetic number, because the mean of its divisors is an integer number (62830).

2¹²⁵⁶⁵⁹ is an apocalyptic number.

125659 is a deficient number, since it is larger than the sum of its proper divisors (1).

125659 is an equidigital number, since it uses as much as digits as its factorization.

125659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 125659 is about 354.4841322260. The cubic root of 125659 is about 50.0877127063.

It can be divided in two parts, 125 and 659, that added together give a square (784 = 28²).

The spelling of 125659 in words is "one hundred twenty-five thousand, six hundred fifty-nine".