71543461 has 8 divisors (see below), whose sum is σ = 78120000. Its totient is φ = 64979040.

The previous prime is 71543453. The next prime is 71543467. The reversal of 71543461 is 16434517.

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 71543461 - 2³ = 71543453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71543467) 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, 13065 + ... + 17713.

It is an arithmetic number, because the mean of its divisors is an integer number (9765000).

Almost surely, 2^71543461 is an apocalyptic number.

It is an amenable number.

71543461 is a deficient number, since it is larger than the sum of its proper divisors (6576539).

71543461 is a wasteful number, since it uses less digits than its factorization.

71543461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059.

The product of its digits is 10080, while the sum is 31.

The square root of 71543461 is about 8458.3367750404. The cubic root of 71543461 is about 415.1356038205.

Adding to 71543461 its reverse (16434517), we get a palindrome (87977978).

The spelling of 71543461 in words is "seventy-one million, five hundred forty-three thousand, four hundred sixty-one".