71361080 has 64 divisors (see below), whose sum is σ = 187799040. Its totient is φ = 23893632.

The previous prime is 71361079. The next prime is 71361089. The reversal of 71361080 is 8016317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71361089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9077 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 2^71361080 is an apocalyptic number.

71361080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71361080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93899520).

71361080 is an abundant number, since it is smaller than the sum of its proper divisors (116437960).

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

71361080 is a wasteful number, since it uses less digits than its factorization.

71361080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 71361080 is about 8447.5487568880. The cubic root of 71361080 is about 414.7825444197.

Adding to 71361080 its reverse (8016317), we get a palindrome (79377397).

The spelling of 71361080 in words is "seventy-one million, three hundred sixty-one thousand, eighty".