631269349 has 2 divisors, whose sum is σ = 631269350. Its totient is φ = 631269348.

The previous prime is 631269341. The next prime is 631269389. The reversal of 631269349 is 943962136.

631269349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373185124 + 258084225 = 19318^2 + 16065^2 .

It is a cyclic number.

It is not a de Polignac number, because 631269349 - 2³ = 631269341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631269341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315634674 + 315634675.

It is an arithmetic number, because the mean of its divisors is an integer number (315634675).

Almost surely, 2^631269349 is an apocalyptic number.

It is an amenable number.

631269349 is a deficient number, since it is larger than the sum of its proper divisors (1).

631269349 is an equidigital number, since it uses as much as digits as its factorization.

631269349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 631269349 is about 25125.0741093434. The cubic root of 631269349 is about 857.8372504069.

The spelling of 631269349 in words is "six hundred thirty-one million, two hundred sixty-nine thousand, three hundred forty-nine".