71054005 has 16 divisors (see below), whose sum is σ = 93944448. Its totient is φ = 51160000.

The previous prime is 71054003. The next prime is 71054021. The reversal of 71054005 is 50045017.

It is not a de Polignac number, because 71054005 - 2¹ = 71054003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71054003) 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 in 15 ways as a sum of consecutive naturals, for example, 841 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (5871528).

Almost surely, 2^71054005 is an apocalyptic number.

It is an amenable number.

71054005 is a deficient number, since it is larger than the sum of its proper divisors (22890443).

71054005 is a wasteful number, since it uses less digits than its factorization.

71054005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 71054005 is about 8429.3537711974. The cubic root of 71054005 is about 414.1867365327.

The spelling of 71054005 in words is "seventy-one million, fifty-four thousand, five".