71541320 has 32 divisors (see below), whose sum is σ = 161697600. Its totient is φ = 28486848.

The previous prime is 71541311. The next prime is 71541329. The reversal of 71541320 is 2314517.

It is an interprime number because it is at equal distance from previous prime (71541311) and next prime (71541329).

It is not an unprimeable number, because it can be changed into a prime (71541329) 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, 5141 + ... + 13019.

It is an arithmetic number, because the mean of its divisors is an integer number (5053050).

Almost surely, 2^71541320 is an apocalyptic number.

It is an amenable number.

71541320 is an abundant number, since it is smaller than the sum of its proper divisors (90156280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71541320 is a wasteful number, since it uses less digits than its factorization.

71541320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117 (or 8113 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 71541320 is about 8458.2102125686. The cubic root of 71541320 is about 415.1314626818.

Adding to 71541320 its reverse (2314517), we get a palindrome (73855837).

The spelling of 71541320 in words is "seventy-one million, five hundred forty-one thousand, three hundred twenty".