71951072 has 24 divisors (see below), whose sum is σ = 149987376. Its totient is φ = 33859072.

The previous prime is 71951053. The next prime is 71951101. The reversal of 71951072 is 27015917.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 65588 + ... + 66675.

It is an arithmetic number, because the mean of its divisors is an integer number (6249474).

Almost surely, 2^71951072 is an apocalyptic number.

It is an amenable number.

71951072 is an abundant number, since it is smaller than the sum of its proper divisors (78036304).

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

71951072 is a wasteful number, since it uses less digits than its factorization.

71951072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132290 (or 132282 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 71951072 is about 8482.3977742146. The cubic root of 71951072 is about 415.9225077550.

Adding to 71951072 its reverse (27015917), we get a palindrome (98966989).

The spelling of 71951072 in words is "seventy-one million, nine hundred fifty-one thousand, seventy-two".