71172115 has 16 divisors (see below), whose sum is σ = 103349952. Its totient is φ = 45932544.

The previous prime is 71172107. The next prime is 71172161. The reversal of 71172115 is 51127117.

It is not a de Polignac number, because 71172115 - 2³ = 71172107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71172115.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59214 + ... + 60403.

It is an arithmetic number, because the mean of its divisors is an integer number (6459372).

Almost surely, 2^71172115 is an apocalyptic number.

71172115 is a deficient number, since it is larger than the sum of its proper divisors (32177837).

71172115 is a wasteful number, since it uses less digits than its factorization.

71172115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119646.

The product of its digits is 490, while the sum is 25.

The square root of 71172115 is about 8436.3567373600. The cubic root of 71172115 is about 414.4161043908.

The spelling of 71172115 in words is "seventy-one million, one hundred seventy-two thousand, one hundred fifteen".