125159 has 4 divisors (see below), whose sum is σ = 125904. Its totient is φ = 124416.

The previous prime is 125149. The next prime is 125183. The reversal of 125159 is 951521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 951521 = 101 ⋅9421.

It is a cyclic number.

It is not a de Polignac number, because 125159 - 2¹² = 121063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125159.

It is not an unprimeable number, because it can be changed into a prime (125119) 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, 14 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (31476).

2¹²⁵¹⁵⁹ is an apocalyptic number.

125159 is a deficient number, since it is larger than the sum of its proper divisors (745).

125159 is an equidigital number, since it uses as much as digits as its factorization.

125159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its digits is 450, while the sum is 23.

The square root of 125159 is about 353.7781790897. The cubic root of 125159 is about 50.0211910175.

The spelling of 125159 in words is "one hundred twenty-five thousand, one hundred fifty-nine".