125831143 has 2 divisors, whose sum is σ = 125831144. Its totient is φ = 125831142.

The previous prime is 125831113. The next prime is 125831171. The reversal of 125831143 is 341138521.

It is a happy number.

It is an a-pointer prime, because the next prime (125831171) can be obtained adding 125831143 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125831143 - 2²¹ = 123733991 is a prime.

It is a super-3 number, since 3×125831143³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125831113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62915571 + 62915572.

It is an arithmetic number, because the mean of its divisors is an integer number (62915572).

Almost surely, 2^125831143 is an apocalyptic number.

125831143 is a deficient number, since it is larger than the sum of its proper divisors (1).

125831143 is an equidigital number, since it uses as much as digits as its factorization.

125831143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 125831143 is about 11217.4481500919. The cubic root of 125831143 is about 501.1057435266.

Adding to 125831143 its reverse (341138521), we get a palindrome (466969664).

The spelling of 125831143 in words is "one hundred twenty-five million, eight hundred thirty-one thousand, one hundred forty-three".