125131043 has 4 divisors (see below), whose sum is σ = 126300600. Its totient is φ = 123961488.

The previous prime is 125131037. The next prime is 125131103. The reversal of 125131043 is 340131521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125131043 - 2²⁰ = 124082467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125131943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584618 + ... + 584831.

It is an arithmetic number, because the mean of its divisors is an integer number (31575150).

Almost surely, 2^125131043 is an apocalyptic number.

125131043 is a deficient number, since it is larger than the sum of its proper divisors (1169557).

125131043 is a wasteful number, since it uses less digits than its factorization.

125131043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169556.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125131043 is about 11186.1987734887. The cubic root of 125131043 is about 500.1746629786.

Adding to 125131043 its reverse (340131521), we get a palindrome (465262564).

The spelling of 125131043 in words is "one hundred twenty-five million, one hundred thirty-one thousand, forty-three".