71041572 has 216 divisors, whose sum is σ = 233041536. Its totient is φ = 18095616.

The previous prime is 71041567. The next prime is 71041573. The reversal of 71041572 is 27514017.

It is not an unprimeable number, because it can be changed into a prime (71041573) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 689673 + ... + 689775.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^71041572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71041572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116520768).

71041572 is an abundant number, since it is smaller than the sum of its proper divisors (161999964).

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

71041572 is a wasteful number, since it uses less digits than its factorization.

71041572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 71041572 is about 8428.6162565394. The cubic root of 71041572 is about 414.1625770497.

Adding to 71041572 its reverse (27514017), we get a palindrome (98555589).

The spelling of 71041572 in words is "seventy-one million, forty-one thousand, five hundred seventy-two".