631497341 has 2 divisors, whose sum is σ = 631497342. Its totient is φ = 631497340.

The previous prime is 631497287. The next prime is 631497343. The reversal of 631497341 is 143794136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 610831225 + 20666116 = 24715^2 + 4546^2 .

It is a cyclic number.

It is not a de Polignac number, because 631497341 - 2¹⁰ = 631496317 is a prime.

Together with 631497343, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 631497295 and 631497304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631497343) 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, 315748670 + 315748671.

It is an arithmetic number, because the mean of its divisors is an integer number (315748671).

Almost surely, 2^631497341 is an apocalyptic number.

It is an amenable number.

631497341 is a deficient number, since it is larger than the sum of its proper divisors (1).

631497341 is an equidigital number, since it uses as much as digits as its factorization.

631497341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 631497341 is about 25129.6108406000. The cubic root of 631497341 is about 857.9405113947.

The spelling of 631497341 in words is "six hundred thirty-one million, four hundred ninety-seven thousand, three hundred forty-one".