1425111143 has 2 divisors, whose sum is σ = 1425111144. Its totient is φ = 1425111142.

The previous prime is 1425111101. The next prime is 1425111151. The reversal of 1425111143 is 3411115241.

It is a strong prime.

It is an emirp because it is prime and its reverse (3411115241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1425111143 - 2⁸ = 1425110887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425111043) 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, 712555571 + 712555572.

It is an arithmetic number, because the mean of its divisors is an integer number (712555572).

Almost surely, 2^1425111143 is an apocalyptic number.

1425111143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425111143 is an equidigital number, since it uses as much as digits as its factorization.

1425111143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 1425111143 is about 37750.6442726479. The cubic root of 1425111143 is about 1125.3378127579.

Adding to 1425111143 its reverse (3411115241), we get a palindrome (4836226384).

The spelling of 1425111143 in words is "one billion, four hundred twenty-five million, one hundred eleven thousand, one hundred forty-three".