631267141 has 2 divisors, whose sum is σ = 631267142. Its totient is φ = 631267140.

The previous prime is 631267097. The next prime is 631267159. The reversal of 631267141 is 141762136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631064641 + 202500 = 25121^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 631267141 - 2¹¹ = 631265093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631207141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315633570 + 315633571.

It is an arithmetic number, because the mean of its divisors is an integer number (315633571).

Almost surely, 2^631267141 is an apocalyptic number.

It is an amenable number.

631267141 is a deficient number, since it is larger than the sum of its proper divisors (1).

631267141 is an equidigital number, since it uses as much as digits as its factorization.

631267141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 631267141 is about 25125.0301691361. The cubic root of 631267141 is about 857.8362502491.

The spelling of 631267141 in words is "six hundred thirty-one million, two hundred sixty-seven thousand, one hundred forty-one".