71332117 has 4 divisors (see below), whose sum is σ = 72678060. Its totient is φ = 69986176.

The previous prime is 71332103. The next prime is 71332123. The reversal of 71332117 is 71123317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65383396 + 5948721 = 8086^2 + 2439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71332117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71332091 and 71332100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71332127) 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, 672892 + ... + 672997.

It is an arithmetic number, because the mean of its divisors is an integer number (18169515).

Almost surely, 2^71332117 is an apocalyptic number.

It is an amenable number.

71332117 is a deficient number, since it is larger than the sum of its proper divisors (1345943).

71332117 is a wasteful number, since it uses less digits than its factorization.

71332117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345942.

The product of its digits is 882, while the sum is 25.

The square root of 71332117 is about 8445.8342986350. The cubic root of 71332117 is about 414.7264215188.

The spelling of 71332117 in words is "seventy-one million, three hundred thirty-two thousand, one hundred seventeen".