63071131 has 2 divisors, whose sum is σ = 63071132. Its totient is φ = 63071130.

The previous prime is 63071093. The next prime is 63071137. The reversal of 63071131 is 13117036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63071131 - 2⁹ = 63070619 is a prime.

It is a super-2 number, since 2×63071131² = 7955935131238322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63071137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31535565 + 31535566.

It is an arithmetic number, because the mean of its divisors is an integer number (31535566).

Almost surely, 2^63071131 is an apocalyptic number.

63071131 is a deficient number, since it is larger than the sum of its proper divisors (1).

63071131 is an equidigital number, since it uses as much as digits as its factorization.

63071131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 63071131 is about 7941.7335009430. The cubic root of 63071131 is about 398.0554180721.

Adding to 63071131 its reverse (13117036), we get a palindrome (76188167).

The spelling of 63071131 in words is "sixty-three million, seventy-one thousand, one hundred thirty-one".