125143135 has 16 divisors (see below), whose sum is σ = 162437184. Its totient is φ = 92005632.

The previous prime is 125143129. The next prime is 125143157. The reversal of 125143135 is 531341521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125143135 - 2³ = 125143127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11014 + ... + 19276.

It is an arithmetic number, because the mean of its divisors is an integer number (10152324).

Almost surely, 2^125143135 is an apocalyptic number.

125143135 is a deficient number, since it is larger than the sum of its proper divisors (37294049).

125143135 is a wasteful number, since it uses less digits than its factorization.

125143135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8514.

The product of its digits is 1800, while the sum is 25.

The square root of 125143135 is about 11186.7392478774. The cubic root of 125143135 is about 500.1907738681.

Adding to 125143135 its reverse (531341521), we get a palindrome (656484656).

The spelling of 125143135 in words is "one hundred twenty-five million, one hundred forty-three thousand, one hundred thirty-five".