71197056 has 224 divisors, whose sum is σ = 245269200. Its totient is φ = 20155392.

The previous prime is 71197043. The next prime is 71197069. The reversal of 71197056 is 65079117.

It is an interprime number because it is at equal distance from previous prime (71197043) and next prime (71197069).

It is a tau number, because it is divible by the number of its divisors (224).

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 71197056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 653130 + ... + 653238.

Almost surely, 2^71197056 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 71197056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122634600).

71197056 is an abundant number, since it is smaller than the sum of its proper divisors (174072144).

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

71197056 is an equidigital number, since it uses as much as digits as its factorization.

71197056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 121 counting only the distinct ones).

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

The square root of 71197056 is about 8437.8347933578. The cubic root of 71197056 is about 414.4645069848.

The spelling of 71197056 in words is "seventy-one million, one hundred ninety-seven thousand, fifty-six".