71315101 has 12 divisors (see below), whose sum is σ = 84419356. Its totient is φ = 59843520.

The previous prime is 71315059. The next prime is 71315107. The reversal of 71315101 is 10151317.

It can be written as a sum of positive squares in 2 ways, for example, as 29052100 + 42263001 = 5390^2 + 6501^2 .

It is not a de Polignac number, because 71315101 - 2²¹ = 69217949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71315107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21096 + ... + 24241.

Almost surely, 2^71315101 is an apocalyptic number.

It is an amenable number.

71315101 is a deficient number, since it is larger than the sum of its proper divisors (13104255).

71315101 is a wasteful number, since it uses less digits than its factorization.

71315101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372 (or 45361 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 71315101 is about 8444.8268780360. The cubic root of 71315101 is about 414.6934417695.

Adding to 71315101 its reverse (10151317), we get a palindrome (81466418).

The spelling of 71315101 in words is "seventy-one million, three hundred fifteen thousand, one hundred one".