71130052 has 24 divisors (see below), whose sum is σ = 142531200. Its totient is φ = 30426240.

The previous prime is 71130047. The next prime is 71130071. The reversal of 71130052 is 25003117.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14652 + ... + 18892.

It is an arithmetic number, because the mean of its divisors is an integer number (5938800).

Almost surely, 2^71130052 is an apocalyptic number.

It is an amenable number.

71130052 is an abundant number, since it is smaller than the sum of its proper divisors (71401148).

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

71130052 is a wasteful number, since it uses less digits than its factorization.

71130052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851 (or 4849 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 71130052 is about 8433.8634089010. The cubic root of 71130052 is about 414.3344477862.

Adding to 71130052 its reverse (25003117), we get a palindrome (96133169).

The spelling of 71130052 in words is "seventy-one million, one hundred thirty thousand, fifty-two".