71224715 has 16 divisors (see below), whose sum is σ = 87086016. Its totient is φ = 55910400.

The previous prime is 71224709. The next prime is 71224717. The reversal of 71224715 is 51742217.

It is not a de Polignac number, because 71224715 - 2⁶ = 71224651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71224717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110795 + ... + 111435.

It is an arithmetic number, because the mean of its divisors is an integer number (5442876).

Almost surely, 2^71224715 is an apocalyptic number.

71224715 is a deficient number, since it is larger than the sum of its proper divisors (15861301).

71224715 is a wasteful number, since it uses less digits than its factorization.

71224715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

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

The square root of 71224715 is about 8439.4736210264. The cubic root of 71224715 is about 414.5181711402.

The spelling of 71224715 in words is "seventy-one million, two hundred twenty-four thousand, seven hundred fifteen".