71034128 has 20 divisors (see below), whose sum is σ = 150140688. Its totient is φ = 32288160.

The previous prime is 71034091. The next prime is 71034199. The reversal of 71034128 is 82143017.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71034097 and 71034106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201626 + ... + 201977.

Almost surely, 2^71034128 is an apocalyptic number.

It is an amenable number.

71034128 is an abundant number, since it is smaller than the sum of its proper divisors (79106560).

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

71034128 is a wasteful number, since it uses less digits than its factorization.

71034128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403622 (or 403616 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 71034128 is about 8428.1746540992. The cubic root of 71034128 is about 414.1481107129.

Subtracting 71034128 from its reverse (82143017), we obtain a square (11108889 = 3333²).

The spelling of 71034128 in words is "seventy-one million, thirty-four thousand, one hundred twenty-eight".