71323541 has 8 divisors (see below), whose sum is σ = 73513440. Its totient is φ = 69157872.

The previous prime is 71323537. The next prime is 71323573. The reversal of 71323541 is 14532317.

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 71323541 - 2² = 71323537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71323541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71323501) 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, 11 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (9189180).

Almost surely, 2^71323541 is an apocalyptic number.

It is an amenable number.

71323541 is a deficient number, since it is larger than the sum of its proper divisors (2189899).

71323541 is a wasteful number, since it uses less digits than its factorization.

71323541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115.

The product of its digits is 2520, while the sum is 26.

The square root of 71323541 is about 8445.3265774628. The cubic root of 71323541 is about 414.7098005048.

Adding to 71323541 its reverse (14532317), we get a palindrome (85855858).

The spelling of 71323541 in words is "seventy-one million, three hundred twenty-three thousand, five hundred forty-one".