425420131 has 2 divisors, whose sum is σ = 425420132. Its totient is φ = 425420130.

The previous prime is 425420119. The next prime is 425420147. The reversal of 425420131 is 131024524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425420131 - 2¹¹ = 425418083 is a prime.

It is a super-2 number, since 2×425420131² = 361964575720114322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425420101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212710065 + 212710066.

It is an arithmetic number, because the mean of its divisors is an integer number (212710066).

Almost surely, 2^425420131 is an apocalyptic number.

425420131 is a deficient number, since it is larger than the sum of its proper divisors (1).

425420131 is an equidigital number, since it uses as much as digits as its factorization.

425420131 is an evil number, because the sum of its binary digits is even.

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

The square root of 425420131 is about 20625.7152845665. The cubic root of 425420131 is about 752.0949611057.

Adding to 425420131 its reverse (131024524), we get a palindrome (556444655).

The spelling of 425420131 in words is "four hundred twenty-five million, four hundred twenty thousand, one hundred thirty-one".