125420143 has 2 divisors, whose sum is σ = 125420144. Its totient is φ = 125420142.

The previous prime is 125420089. The next prime is 125420171. The reversal of 125420143 is 341024521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125420143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125460143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62710071 + 62710072.

It is an arithmetic number, because the mean of its divisors is an integer number (62710072).

Almost surely, 2^125420143 is an apocalyptic number.

125420143 is a deficient number, since it is larger than the sum of its proper divisors (1).

125420143 is an equidigital number, since it uses as much as digits as its factorization.

125420143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 125420143 is about 11199.1134917010. The cubic root of 125420143 is about 500.5595642089.

Adding to 125420143 its reverse (341024521), we get a palindrome (466444664).

The spelling of 125420143 in words is "one hundred twenty-five million, four hundred twenty thousand, one hundred forty-three".