71071146 has 24 divisors (see below), whose sum is σ = 154327680. Its totient is φ = 23638056.

The previous prime is 71071129. The next prime is 71071159. The reversal of 71071146 is 64117017.

It is a super-2 number, since 2×71071146² = 10102215587506632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4501 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (6430320).

Almost surely, 2^71071146 is an apocalyptic number.

71071146 is an abundant number, since it is smaller than the sum of its proper divisors (83256534).

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

71071146 is a wasteful number, since it uses less digits than its factorization.

71071146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8730 (or 8727 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 71071146 is about 8430.3704544937. The cubic root of 71071146 is about 414.2200398585.

It can be divided in two parts, 71071 and 146, that added together give a palindrome (71217).

The spelling of 71071146 in words is "seventy-one million, seventy-one thousand, one hundred forty-six".