71196913 has 2 divisors, whose sum is σ = 71196914. Its totient is φ = 71196912.

The previous prime is 71196911. The next prime is 71196929. The reversal of 71196913 is 31969117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 26132544 = 6713^2 + 5112^2 .

It is a cyclic number.

It is not a de Polignac number, because 71196913 - 2¹ = 71196911 is a prime.

Together with 71196911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71196911) 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, 35598456 + 35598457.

It is an arithmetic number, because the mean of its divisors is an integer number (35598457).

Almost surely, 2^71196913 is an apocalyptic number.

It is an amenable number.

71196913 is a deficient number, since it is larger than the sum of its proper divisors (1).

71196913 is an equidigital number, since it uses as much as digits as its factorization.

71196913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 37.

The square root of 71196913 is about 8437.8263196157. The cubic root of 71196913 is about 414.4642294992.

The spelling of 71196913 in words is "seventy-one million, one hundred ninety-six thousand, nine hundred thirteen".