71261080 has 32 divisors (see below), whose sum is σ = 174914640. Its totient is φ = 25912960.

The previous prime is 71261063. The next prime is 71261083. The reversal of 71261080 is 8016217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71261083) 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, 80539 + ... + 81418.

Almost surely, 2^71261080 is an apocalyptic number.

It is an amenable number.

71261080 is an abundant number, since it is smaller than the sum of its proper divisors (103653560).

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

71261080 is a wasteful number, since it uses less digits than its factorization.

71261080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161979 (or 161975 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 71261080 is about 8441.6278051096. The cubic root of 71261080 is about 414.5887055916.

Adding to 71261080 its reverse (8016217), we get a palindrome (79277297).

The spelling of 71261080 in words is "seventy-one million, two hundred sixty-one thousand, eighty".