71936113 has 2 divisors, whose sum is σ = 71936114. Its totient is φ = 71936112.

The previous prime is 71936107. The next prime is 71936143. The reversal of 71936113 is 31163917.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 1912689 = 8368^2 + 1383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71936113 is a prime.

It is not a weakly prime, because it can be changed into another prime (71936143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35968056 + 35968057.

It is an arithmetic number, because the mean of its divisors is an integer number (35968057).

Almost surely, 2^71936113 is an apocalyptic number.

It is an amenable number.

71936113 is a deficient number, since it is larger than the sum of its proper divisors (1).

71936113 is an equidigital number, since it uses as much as digits as its factorization.

71936113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 31.

The square root of 71936113 is about 8481.5159611947. The cubic root of 71936113 is about 415.8936816104.

The spelling of 71936113 in words is "seventy-one million, nine hundred thirty-six thousand, one hundred thirteen".