71164039 has 8 divisors (see below), whose sum is σ = 72352800. Its totient is φ = 69985056.

The previous prime is 71164031. The next prime is 71164043. The reversal of 71164039 is 93046117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71164039 - 2³ = 71164031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71164039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71164031) 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 7 ways as a sum of consecutive naturals, for example, 13029 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (9044100).

Almost surely, 2^71164039 is an apocalyptic number.

71164039 is a deficient number, since it is larger than the sum of its proper divisors (1188761).

71164039 is a wasteful number, since it uses less digits than its factorization.

71164039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 71164039 is about 8435.8780811484. The cubic root of 71164039 is about 414.4004290052.

The spelling of 71164039 in words is "seventy-one million, one hundred sixty-four thousand, thirty-nine".