71307113 has 2 divisors, whose sum is σ = 71307114. Its totient is φ = 71307112.

The previous prime is 71307091. The next prime is 71307127. The reversal of 71307113 is 31170317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 1283689 = 8368^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 71307113 - 2¹² = 71303017 is a prime.

It is not a weakly prime, because it can be changed into another prime (71307193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35653556 + 35653557.

It is an arithmetic number, because the mean of its divisors is an integer number (35653557).

Almost surely, 2^71307113 is an apocalyptic number.

It is an amenable number.

71307113 is a deficient number, since it is larger than the sum of its proper divisors (1).

71307113 is an equidigital number, since it uses as much as digits as its factorization.

71307113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 71307113 is about 8444.3539125264. The cubic root of 71307113 is about 414.6779579292.

The spelling of 71307113 in words is "seventy-one million, three hundred seven thousand, one hundred thirteen".