71100100 has 18 divisors (see below), whose sum is σ = 154287434. Its totient is φ = 28440000.

The previous prime is 71100097. The next prime is 71100121. The reversal of 71100100 is 100117.

It can be written as a sum of positive squares in 3 ways, for example, as 304704 + 70795396 = 552^2 + 8414^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 355401 + ... + 355600.

Almost surely, 2^71100100 is an apocalyptic number.

It is an amenable number.

71100100 is an abundant number, since it is smaller than the sum of its proper divisors (83187334).

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

71100100 is a wasteful number, since it uses less digits than its factorization.

71100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711015 (or 711008 counting only the distinct ones).

The product of its (nonzero) digits is 7, while the sum is 10.

The square root of 71100100 is about 8432.0875232649. The cubic root of 71100100 is about 414.2762825552.

Adding to 71100100 its reverse (100117), we get a palindrome (71200217).

The spelling of 71100100 in words is "seventy-one million, one hundred thousand, one hundred".