631445241 has 16 divisors (see below), whose sum is σ = 967193984. Its totient is φ = 358953984.

The previous prime is 631445209. The next prime is 631445251. The reversal of 631445241 is 142544136.

It is not a de Polignac number, because 631445241 - 2⁵ = 631445209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631445199 and 631445208.

It is not an unprimeable number, because it can be changed into a prime (631445251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73846 + ... + 81951.

It is an arithmetic number, because the mean of its divisors is an integer number (60449624).

Almost surely, 2^631445241 is an apocalyptic number.

It is an amenable number.

631445241 is a deficient number, since it is larger than the sum of its proper divisors (335748743).

631445241 is a wasteful number, since it uses less digits than its factorization.

631445241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156000.

The product of its digits is 11520, while the sum is 30.

The square root of 631445241 is about 25128.5741935351. The cubic root of 631445241 is about 857.9169167163.

Adding to 631445241 its reverse (142544136), we get a palindrome (773989377).

The spelling of 631445241 in words is "six hundred thirty-one million, four hundred forty-five thousand, two hundred forty-one".