71716137 has 4 divisors (see below), whose sum is σ = 95621520. Its totient is φ = 47810756.

The previous prime is 71716133. The next prime is 71716147. The reversal of 71716137 is 73161717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71716137 - 2² = 71716133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71716098 and 71716107.

It is not an unprimeable number, because it can be changed into a prime (71716133) 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 in 3 ways as a sum of consecutive naturals, for example, 11952687 + ... + 11952692.

It is an arithmetic number, because the mean of its divisors is an integer number (23905380).

Almost surely, 2^71716137 is an apocalyptic number.

It is an amenable number.

71716137 is a deficient number, since it is larger than the sum of its proper divisors (23905383).

71716137 is a wasteful number, since it uses less digits than its factorization.

71716137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23905382.

The product of its digits is 6174, while the sum is 33.

The square root of 71716137 is about 8468.5380674589. The cubic root of 71716137 is about 415.4693233994.

The spelling of 71716137 in words is "seventy-one million, seven hundred sixteen thousand, one hundred thirty-seven".