71126851 has 2 divisors, whose sum is σ = 71126852. Its totient is φ = 71126850.

The previous prime is 71126849. The next prime is 71126857. The reversal of 71126851 is 15862117.

It is a weak prime.

It is an emirp because it is prime and its reverse (15862117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71126851 - 2¹ = 71126849 is a prime.

Together with 71126849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71126857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35563425 + 35563426.

It is an arithmetic number, because the mean of its divisors is an integer number (35563426).

Almost surely, 2^71126851 is an apocalyptic number.

71126851 is a deficient number, since it is larger than the sum of its proper divisors (1).

71126851 is an equidigital number, since it uses as much as digits as its factorization.

71126851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 31.

The square root of 71126851 is about 8433.6736360853. The cubic root of 71126851 is about 414.3282323895.

Adding to 71126851 its reverse (15862117), we get a palindrome (86988968).

The spelling of 71126851 in words is "seventy-one million, one hundred twenty-six thousand, eight hundred fifty-one".