71048137 has 2 divisors, whose sum is σ = 71048138. Its totient is φ = 71048136.

The previous prime is 71048129. The next prime is 71048149. The reversal of 71048137 is 73184017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 2886601 = 8256^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 71048137 - 2³ = 71048129 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71048099 and 71048108.

It is not a weakly prime, because it can be changed into another prime (71048437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35524068 + 35524069.

It is an arithmetic number, because the mean of its divisors is an integer number (35524069).

Almost surely, 2^71048137 is an apocalyptic number.

It is an amenable number.

71048137 is a deficient number, since it is larger than the sum of its proper divisors (1).

71048137 is an equidigital number, since it uses as much as digits as its factorization.

71048137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 71048137 is about 8429.0056946238. The cubic root of 71048137 is about 414.1753343386.

The spelling of 71048137 in words is "seventy-one million, forty-eight thousand, one hundred thirty-seven".