71133456 has 20 divisors (see below), whose sum is σ = 183761552. Its totient is φ = 23711136.

The previous prime is 71133451. The next prime is 71133497. The reversal of 71133456 is 65433117.

It is not an unprimeable number, because it can be changed into a prime (71133451) 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, 740926 + ... + 741021.

Almost surely, 2^71133456 is an apocalyptic number.

It is an amenable number.

71133456 is an abundant number, since it is smaller than the sum of its proper divisors (112628096).

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

71133456 is a wasteful number, since it uses less digits than its factorization.

71133456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481958 (or 1481952 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 71133456 is about 8434.0652119841. The cubic root of 71133456 is about 414.3410571443.

The spelling of 71133456 in words is "seventy-one million, one hundred thirty-three thousand, four hundred fifty-six".