71070 has 32 divisors (see below), whose sum is σ = 179712. Its totient is φ = 17952.

The previous prime is 71069. The next prime is 71081. The reversal of 71070 is 7017.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71070.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639 + ... + 741.

It is an arithmetic number, because the mean of its divisors is an integer number (5616).

2⁷¹⁰⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89856).

71070 is an abundant number, since it is smaller than the sum of its proper divisors (108642).

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

71070 is a wasteful number, since it uses less digits than its factorization.

71070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 49, while the sum is 15.

The square root of 71070 is about 266.5895721892. The cubic root of 71070 is about 41.4217813457.

Adding to 71070 its reverse (7017), we get a palindrome (78087).

It can be divided in two parts, 710 and 70, that added together give a triangular number (780 = T₃₉).

The spelling of 71070 in words is "seventy-one thousand, seventy", and thus it is an iban number.