425731349 has 2 divisors, whose sum is σ = 425731350. Its totient is φ = 425731348.

The previous prime is 425731343. The next prime is 425731373. The reversal of 425731349 is 943137524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268730449 + 157000900 = 16393^2 + 12530^2 .

It is a cyclic number.

It is not a de Polignac number, because 425731349 - 2⁸ = 425731093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425731343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212865674 + 212865675.

It is an arithmetic number, because the mean of its divisors is an integer number (212865675).

Almost surely, 2^425731349 is an apocalyptic number.

It is an amenable number.

425731349 is a deficient number, since it is larger than the sum of its proper divisors (1).

425731349 is an equidigital number, since it uses as much as digits as its factorization.

425731349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 425731349 is about 20633.2583224269. The cubic root of 425731349 is about 752.2783158795.

The spelling of 425731349 in words is "four hundred twenty-five million, seven hundred thirty-one thousand, three hundred forty-nine".