125135 has 8 divisors (see below), whose sum is σ = 155520. Its totient is φ = 96544.

The previous prime is 125131. The next prime is 125141. The reversal of 125135 is 531521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125135 - 2² = 125131 is a prime.

125135 is a modest number, since divided by 135 gives 125 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125131) 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 7 ways as a sum of consecutive naturals, for example, 287 + ... + 576.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2¹²⁵¹³⁵ is an apocalyptic number.

125135 is a deficient number, since it is larger than the sum of its proper divisors (30385).

125135 is an equidigital number, since it uses as much as digits as its factorization.

125135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897.

The product of its digits is 150, while the sum is 17.

The square root of 125135 is about 353.7442579039. The cubic root of 125135 is about 50.0179935239.

Adding to 125135 its reverse (531521), we get a palindrome (656656).

The spelling of 125135 in words is "one hundred twenty-five thousand, one hundred thirty-five".