71100101 has 4 divisors (see below), whose sum is σ = 71145900. Its totient is φ = 71054304.

The previous prime is 71100097. The next prime is 71100121. The reversal of 71100101 is 10100117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33339076 + 37761025 = 5774^2 + 6145^2 .

It is a cyclic number.

It is not a de Polignac number, because 71100101 - 2² = 71100097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71100121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20486 + ... + 23703.

It is an arithmetic number, because the mean of its divisors is an integer number (17786475).

Almost surely, 2^71100101 is an apocalyptic number.

It is an amenable number.

71100101 is a deficient number, since it is larger than the sum of its proper divisors (45799).

71100101 is a wasteful number, since it uses less digits than its factorization.

71100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45798.

The product of its (nonzero) digits is 7, while the sum is 11.

The square root of 71100101 is about 8432.0875825622. The cubic root of 71100101 is about 414.2762844974.

Adding to 71100101 its reverse (10100117), we get a palindrome (81200218).

The spelling of 71100101 in words is "seventy-one million, one hundred thousand, one hundred one".