71472215 has 16 divisors (see below), whose sum is σ = 87317568. Its totient is φ = 56153856.

The previous prime is 71472179. The next prime is 71472217. The reversal of 71472215 is 51227417.

It is a cyclic number.

It is not a de Polignac number, because 71472215 - 2²² = 67277911 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 (71472217) 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 15 ways as a sum of consecutive naturals, for example, 70049 + ... + 71061.

It is an arithmetic number, because the mean of its divisors is an integer number (5457348).

Almost surely, 2^71472215 is an apocalyptic number.

71472215 is a deficient number, since it is larger than the sum of its proper divisors (15845353).

71472215 is a wasteful number, since it uses less digits than its factorization.

71472215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258.

The product of its digits is 3920, while the sum is 29.

The square root of 71472215 is about 8454.1241415063. The cubic root of 71472215 is about 414.9977548628.

The spelling of 71472215 in words is "seventy-one million, four hundred seventy-two thousand, two hundred fifteen".