71031060 has 96 divisors (see below), whose sum is σ = 222432000. Its totient is φ = 18817920.

The previous prime is 71031047. The next prime is 71031071. The reversal of 71031060 is 6013017.

It is a super-2 number, since 2×71031060² = 10090822969447200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107130 + ... + 107790.

It is an arithmetic number, because the mean of its divisors is an integer number (2317000).

Almost surely, 2^71031060 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 71031060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111216000).

71031060 is an abundant number, since it is smaller than the sum of its proper divisors (151400940).

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

71031060 is a wasteful number, since it uses less digits than its factorization.

71031060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 71031060 is about 8427.9926435658. The cubic root of 71031060 is about 414.1421482048.

Adding to 71031060 its reverse (6013017), we get a palindrome (77044077).

The spelling of 71031060 in words is "seventy-one million, thirty-one thousand, sixty".