71143035461 has 8 divisors (see below), whose sum is σ = 72459979200. Its totient is φ = 69837593760.

The previous prime is 71143035427. The next prime is 71143035527. The reversal of 71143035461 is 16453034117.

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 71143035461 - 2²² = 71138841157 is a prime.

It is a super-2 number, since 2×71143035461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71143031461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2863025 + ... + 2887766.

It is an arithmetic number, because the mean of its divisors is an integer number (9057497400).

Almost surely, 2^71143035461 is an apocalyptic number.

It is an amenable number.

71143035461 is a deficient number, since it is larger than the sum of its proper divisors (1316943739).

71143035461 is a wasteful number, since it uses less digits than its factorization.

71143035461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751019.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 71143035461 its reverse (16453034117), we get a palindrome (87596069578).

The spelling of 71143035461 in words is "seventy-one billion, one hundred forty-three million, thirty-five thousand, four hundred sixty-one".