71945752 has 16 divisors (see below), whose sum is σ = 139550400. Its totient is φ = 34732320.

The previous prime is 71945749. The next prime is 71945759. The reversal of 71945752 is 25754917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71945759) by changing a digit.

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, 154824 + ... + 155287.

It is an arithmetic number, because the mean of its divisors is an integer number (8721900).

Almost surely, 2^71945752 is an apocalyptic number.

It is an amenable number.

71945752 is a deficient number, since it is larger than the sum of its proper divisors (67604648).

71945752 is a wasteful number, since it uses less digits than its factorization.

71945752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310146 (or 310142 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 71945752 is about 8482.0841778421. The cubic root of 71945752 is about 415.9122565189.

The spelling of 71945752 in words is "seventy-one million, nine hundred forty-five thousand, seven hundred fifty-two".