71723152 has 40 divisors (see below), whose sum is σ = 141955200. Its totient is φ = 35098752.

The previous prime is 71723117. The next prime is 71723159. The reversal of 71723152 is 25132717.

It is a self number, because there is not a number n which added to its sum of digits gives 71723152.

It is not an unprimeable number, because it can be changed into a prime (71723159) 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, 226098 + ... + 226414.

It is an arithmetic number, because the mean of its divisors is an integer number (3548880).

Almost surely, 2^71723152 is an apocalyptic number.

It is an amenable number.

71723152 is a deficient number, since it is larger than the sum of its proper divisors (70232048).

71723152 is a wasteful number, since it uses less digits than its factorization.

71723152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 577 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 71723152 is about 8468.9522374376. The cubic root of 71723152 is about 415.4828695012.

Adding to 71723152 its reverse (25132717), we get a palindrome (96855869).

The spelling of 71723152 in words is "seventy-one million, seven hundred twenty-three thousand, one hundred fifty-two".