425403131 has 2 divisors, whose sum is σ = 425403132. Its totient is φ = 425403130.

The previous prime is 425403107. The next prime is 425403151. The reversal of 425403131 is 131304524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425403131 - 2⁶ = 425403067 is a prime.

It is a super-2 number, since 2×425403131² = 361935647729206322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 425403097 and 425403106.

It is not a weakly prime, because it can be changed into another prime (425403151) 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, 212701565 + 212701566.

It is an arithmetic number, because the mean of its divisors is an integer number (212701566).

Almost surely, 2^425403131 is an apocalyptic number.

425403131 is a deficient number, since it is larger than the sum of its proper divisors (1).

425403131 is an equidigital number, since it uses as much as digits as its factorization.

425403131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 425403131 is about 20625.3031735294. The cubic root of 425403131 is about 752.0849429427.

Adding to 425403131 its reverse (131304524), we get a palindrome (556707655).

The spelling of 425403131 in words is "four hundred twenty-five million, four hundred three thousand, one hundred thirty-one".