71343121 has 8 divisors (see below), whose sum is σ = 74137088. Its totient is φ = 68580000.

The previous prime is 71343049. The next prime is 71343127. The reversal of 71343121 is 12134317.

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 71343121 - 2¹³ = 71334929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71343092 and 71343101.

It is not an unprimeable number, because it can be changed into a prime (71343127) 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, 2940 + ... + 12301.

It is an arithmetic number, because the mean of its divisors is an integer number (9267136).

Almost surely, 2^71343121 is an apocalyptic number.

It is an amenable number.

71343121 is a deficient number, since it is larger than the sum of its proper divisors (2793967).

71343121 is a wasteful number, since it uses less digits than its factorization.

71343121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15423.

The product of its digits is 504, while the sum is 22.

The square root of 71343121 is about 8446.4857189248. The cubic root of 71343121 is about 414.7477462511.

Adding to 71343121 its reverse (12134317), we get a palindrome (83477438).

It can be divided in two parts, 713 and 43121, that added together give a palindrome (43834).

The spelling of 71343121 in words is "seventy-one million, three hundred forty-three thousand, one hundred twenty-one".