71128016 has 10 divisors (see below), whose sum is σ = 137810562. Its totient is φ = 35564000.

The previous prime is 71128007. The next prime is 71128019. The reversal of 71128016 is 61082117.

It can be written as a sum of positive squares in only one way, i.e., 68890000 + 2238016 = 8300^2 + 1496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71128019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222735 + ... + 2222766.

Almost surely, 2^71128016 is an apocalyptic number.

It is an amenable number.

71128016 is a deficient number, since it is larger than the sum of its proper divisors (66682546).

71128016 is a wasteful number, since it uses less digits than its factorization.

71128016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445509 (or 4445503 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 71128016 is about 8433.7427041617. The cubic root of 71128016 is about 414.3304944970.

The spelling of 71128016 in words is "seventy-one million, one hundred twenty-eight thousand, sixteen".