71020132 has 24 divisors (see below), whose sum is σ = 129178112. Its totient is φ = 34128000.

The previous prime is 71020127. The next prime is 71020139. The reversal of 71020132 is 23102017.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71020139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16828 + ... + 20620.

Almost surely, 2^71020132 is an apocalyptic number.

It is an amenable number.

71020132 is a deficient number, since it is larger than the sum of its proper divisors (58157980).

71020132 is a wasteful number, since it uses less digits than its factorization.

71020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 71020132 is about 8427.3443029225. The cubic root of 71020132 is about 414.1209087756.

Adding to 71020132 its reverse (23102017), we get a palindrome (94122149).

The spelling of 71020132 in words is "seventy-one million, twenty thousand, one hundred thirty-two".