71025100 has 36 divisors (see below), whose sum is σ = 155083824. Its totient is φ = 28233280.

The previous prime is 71025083. The next prime is 71025103. The reversal of 71025100 is 152017.

It is not an unprimeable number, because it can be changed into a prime (71025103) 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 11 ways as a sum of consecutive naturals, for example, 14574 + ... + 18826.

It is an arithmetic number, because the mean of its divisors is an integer number (4307884).

Almost surely, 2^71025100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71025100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77541912).

71025100 is an abundant number, since it is smaller than the sum of its proper divisors (84058724).

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

71025100 is a wasteful number, since it uses less digits than its factorization.

71025100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 71025100 is about 8427.6390525461. The cubic root of 71025100 is about 414.1305647452.

Adding to 71025100 its reverse (152017), we get a palindrome (71177117).

The spelling of 71025100 in words is "seventy-one million, twenty-five thousand, one hundred".