71331441 has 8 divisors (see below), whose sum is σ = 99243840. Its totient is φ = 45486672.

The previous prime is 71331437. The next prime is 71331457. The reversal of 71331441 is 14413317.

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

It is not a de Polignac number, because 71331441 - 2² = 71331437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71331461) 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 7 ways as a sum of consecutive naturals, for example, 516826 + ... + 516963.

It is an arithmetic number, because the mean of its divisors is an integer number (12405480).

Almost surely, 2^71331441 is an apocalyptic number.

It is an amenable number.

71331441 is a deficient number, since it is larger than the sum of its proper divisors (27912399).

71331441 is a wasteful number, since it uses less digits than its factorization.

71331441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033815.

The product of its digits is 1008, while the sum is 24.

The square root of 71331441 is about 8445.7942788112. The cubic root of 71331441 is about 414.7251114219.

Adding to 71331441 its reverse (14413317), we get a palindrome (85744758).

The spelling of 71331441 in words is "seventy-one million, three hundred thirty-one thousand, four hundred forty-one".