71530211 has 8 divisors (see below), whose sum is σ = 74326800. Its totient is φ = 68755680.

The previous prime is 71530181. The next prime is 71530241. The reversal of 71530211 is 11203517.

It is an interprime number because it is at equal distance from previous prime (71530181) and next prime (71530241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71530211 - 2¹⁰ = 71529187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71530241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (9290850).

Almost surely, 2^71530211 is an apocalyptic number.

71530211 is a deficient number, since it is larger than the sum of its proper divisors (2796589).

71530211 is a wasteful number, since it uses less digits than its factorization.

71530211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11029.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 71530211 is about 8457.5534878592. The cubic root of 71530211 is about 415.1099742415.

Adding to 71530211 its reverse (11203517), we get a palindrome (82733728).

The spelling of 71530211 in words is "seventy-one million, five hundred thirty thousand, two hundred eleven".