71311060 has 12 divisors (see below), whose sum is σ = 149753268. Its totient is φ = 28524416.

The previous prime is 71311043. The next prime is 71311069. The reversal of 71311060 is 6011317.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37601424 + 33709636 = 6132^2 + 5806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71311069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782757 + ... + 1782796.

It is an arithmetic number, because the mean of its divisors is an integer number (12479439).

Almost surely, 2^71311060 is an apocalyptic number.

It is an amenable number.

71311060 is an abundant number, since it is smaller than the sum of its proper divisors (78442208).

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

71311060 is a wasteful number, since it uses less digits than its factorization.

71311060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565562 (or 3565560 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 71311060 is about 8444.5876157454. The cubic root of 71311060 is about 414.6856088897.

Adding to 71311060 its reverse (6011317), we get a palindrome (77322377).

The spelling of 71311060 in words is "seventy-one million, three hundred eleven thousand, sixty".