71245052 has 12 divisors (see below), whose sum is σ = 124876080. Its totient is φ = 35566176.

The previous prime is 71244989. The next prime is 71245061. The reversal of 71245052 is 25054217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11177 + ... + 16352.

It is an arithmetic number, because the mean of its divisors is an integer number (10406340).

Almost surely, 2^71245052 is an apocalyptic number.

It is an amenable number.

71245052 is a deficient number, since it is larger than the sum of its proper divisors (53631028).

71245052 is a wasteful number, since it uses less digits than its factorization.

71245052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28180 (or 28178 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 71245052 is about 8440.6784087536. The cubic root of 71245052 is about 414.5576202453.

Adding to 71245052 its reverse (25054217), we get a palindrome (96299269).

The spelling of 71245052 in words is "seventy-one million, two hundred forty-five thousand, fifty-two".