631107349 has 4 divisors (see below), whose sum is σ = 638711136. Its totient is φ = 623503564.

The previous prime is 631107343. The next prime is 631107353. The reversal of 631107349 is 943701136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631107349 - 2¹⁷ = 630976277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631107343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801769 + ... + 3801934.

It is an arithmetic number, because the mean of its divisors is an integer number (159677784).

Almost surely, 2^631107349 is an apocalyptic number.

It is an amenable number.

631107349 is a deficient number, since it is larger than the sum of its proper divisors (7603787).

631107349 is an equidigital number, since it uses as much as digits as its factorization.

631107349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603786.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 631107349 is about 25121.8500313970. The cubic root of 631107349 is about 857.7638630727.

The spelling of 631107349 in words is "six hundred thirty-one million, one hundred seven thousand, three hundred forty-nine".