425143291 has 2 divisors, whose sum is σ = 425143292. Its totient is φ = 425143290.

The previous prime is 425143223. The next prime is 425143307. The reversal of 425143291 is 192341524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425143291 - 2¹⁵ = 425110523 is a prime.

It is not a weakly prime, because it can be changed into another prime (425143091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212571645 + 212571646.

It is an arithmetic number, because the mean of its divisors is an integer number (212571646).

Almost surely, 2^425143291 is an apocalyptic number.

425143291 is a deficient number, since it is larger than the sum of its proper divisors (1).

425143291 is an equidigital number, since it uses as much as digits as its factorization.

425143291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 425143291 is about 20619.0031524320. The cubic root of 425143291 is about 751.9317850404.

The spelling of 425143291 in words is "four hundred twenty-five million, one hundred forty-three thousand, two hundred ninety-one".