71054064 has 40 divisors (see below), whose sum is σ = 203952720. Its totient is φ = 23684544.

The previous prime is 71054063. The next prime is 71054069. The reversal of 71054064 is 46045017.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71054063) 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, 81807 + ... + 82670.

It is an arithmetic number, because the mean of its divisors is an integer number (5098818).

Almost surely, 2^71054064 is an apocalyptic number.

It is an amenable number.

71054064 is an abundant number, since it is smaller than the sum of its proper divisors (132898656).

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

71054064 is a wasteful number, since it uses less digits than its factorization.

71054064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164494 (or 164482 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71054064 is about 8429.3572708718. The cubic root of 71054064 is about 414.1868511733.

The spelling of 71054064 in words is "seventy-one million, fifty-four thousand, sixty-four".