71339113 has 4 divisors (see below), whose sum is σ = 72685188. Its totient is φ = 69993040.

The previous prime is 71339111. The next prime is 71339119. The reversal of 71339113 is 31193317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31193317 = 17 ⋅1834901.

It can be written as a sum of positive squares in 2 ways, for example, as 29452329 + 41886784 = 5427^2 + 6472^2 .

It is a cyclic number.

It is not a de Polignac number, because 71339113 - 2¹ = 71339111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71339111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672958 + ... + 673063.

It is an arithmetic number, because the mean of its divisors is an integer number (18171297).

Almost surely, 2^71339113 is an apocalyptic number.

It is an amenable number.

71339113 is a deficient number, since it is larger than the sum of its proper divisors (1346075).

71339113 is a wasteful number, since it uses less digits than its factorization.

71339113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346074.

The product of its digits is 1701, while the sum is 28.

The square root of 71339113 is about 8446.2484571554. The cubic root of 71339113 is about 414.7399793724.

The spelling of 71339113 in words is "seventy-one million, three hundred thirty-nine thousand, one hundred thirteen".