71150120 has 16 divisors (see below), whose sum is σ = 160087860. Its totient is φ = 28460032.

The previous prime is 71150089. The next prime is 71150141. The reversal of 71150120 is 2105117.

It can be written as a sum of positive squares in 2 ways, for example, as 70593604 + 556516 = 8402^2 + 746^2 .

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, 889337 + ... + 889416.

Almost surely, 2^71150120 is an apocalyptic number.

It is an amenable number.

71150120 is an abundant number, since it is smaller than the sum of its proper divisors (88937740).

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

71150120 is a wasteful number, since it uses less digits than its factorization.

71150120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778764 (or 1778760 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 71150120 is about 8435.0530525895. The cubic root of 71150120 is about 414.3734096672.

Adding to 71150120 its reverse (2105117), we get a palindrome (73255237).

The spelling of 71150120 in words is "seventy-one million, one hundred fifty thousand, one hundred twenty".