71057196 has 96 divisors (see below), whose sum is σ = 212065280. Its totient is φ = 20155392.

The previous prime is 71057191. The next prime is 71057197. The reversal of 71057196 is 69175017.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71057196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71057191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145665 + ... + 146151.

Almost surely, 2^71057196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71057196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106032640).

71057196 is an abundant number, since it is smaller than the sum of its proper divisors (141008084).

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

71057196 is a wasteful number, since it uses less digits than its factorization.

71057196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 71057196 is about 8429.5430481136. The cubic root of 71057196 is about 414.1929367466.

It can be divided in two parts, 71057 and 196, that added together give a triangular number (71253 = T₃₇₇).

The spelling of 71057196 in words is "seventy-one million, fifty-seven thousand, one hundred ninety-six".