71128452 has 12 divisors (see below), whose sum is σ = 165966416. Its totient is φ = 23709480.

The previous prime is 71128433. The next prime is 71128469. The reversal of 71128452 is 25482117.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2963674 + ... + 2963697.

Almost surely, 2^71128452 is an apocalyptic number.

It is an amenable number.

71128452 is an abundant number, since it is smaller than the sum of its proper divisors (94837964).

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

71128452 is a wasteful number, since it uses less digits than its factorization.

71128452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927378 (or 5927376 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 71128452 is about 8433.7685526697. The cubic root of 71128452 is about 414.3313410820.

The spelling of 71128452 in words is "seventy-one million, one hundred twenty-eight thousand, four hundred fifty-two".