71343331 has 4 divisors (see below), whose sum is σ = 72552600. Its totient is φ = 70134064.

The previous prime is 71343329. The next prime is 71343359. The reversal of 71343331 is 13334317.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71343331 - 2¹ = 71343329 is a prime.

It is a super-2 number, since 2×71343331² = 10179741756351122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71343296 and 71343305.

It is not an unprimeable number, because it can be changed into a prime (71343301) 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, 604546 + ... + 604663.

It is an arithmetic number, because the mean of its divisors is an integer number (18138150).

Almost surely, 2^71343331 is an apocalyptic number.

71343331 is a deficient number, since it is larger than the sum of its proper divisors (1209269).

71343331 is a wasteful number, since it uses less digits than its factorization.

71343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209268.

The product of its digits is 2268, while the sum is 25.

The square root of 71343331 is about 8446.4981501211. The cubic root of 71343331 is about 414.7481531903.

Adding to 71343331 its reverse (13334317), we get a palindrome (84677648).

It can be divided in two parts, 713 and 43331, that added together give a palindrome (44044).

The spelling of 71343331 in words is "seventy-one million, three hundred forty-three thousand, three hundred thirty-one".