71156484 has 144 divisors (see below), whose sum is σ = 215744256. Its totient is φ = 19353600.

The previous prime is 71156473. The next prime is 71156497. The reversal of 71156484 is 48465117.

It is a happy number.

71156484 is a `hidden beast` number, since 7 + 1 + 1 + 5 + 648 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733524 + ... + 733620.

It is an arithmetic number, because the mean of its divisors is an integer number (1498224).

Almost surely, 2^71156484 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 71156484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107872128).

71156484 is an abundant number, since it is smaller than the sum of its proper divisors (144587772).

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

71156484 is a wasteful number, since it uses less digits than its factorization.

71156484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 71156484 is about 8435.4302794819. The cubic root of 71156484 is about 414.3857637984.

The spelling of 71156484 in words is "seventy-one million, one hundred fifty-six thousand, four hundred eighty-four".