71005452 has 24 divisors (see below), whose sum is σ = 189348096. Its totient is φ = 20287248.

The previous prime is 71005433. The next prime is 71005457. The reversal of 71005452 is 25450017.

It is not an unprimeable number, because it can be changed into a prime (71005457) 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, 422568 + ... + 422735.

It is an arithmetic number, because the mean of its divisors is an integer number (7889504).

Almost surely, 2^71005452 is an apocalyptic number.

It is an amenable number.

71005452 is an abundant number, since it is smaller than the sum of its proper divisors (118342644).

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

71005452 is a wasteful number, since it uses less digits than its factorization.

71005452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845317 (or 845315 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 71005452 is about 8426.4732836460. The cubic root of 71005452 is about 414.0923736092.

Adding to 71005452 its reverse (25450017), we get a palindrome (96455469).

The spelling of 71005452 in words is "seventy-one million, five thousand, four hundred fifty-two".