71230615 has 16 divisors (see below), whose sum is σ = 88744320. Its totient is φ = 54846720.

The previous prime is 71230603. The next prime is 71230619. The reversal of 71230615 is 51603217.

71230615 = 1208² + 1209² + ... + 1254².

It is not a de Polignac number, because 71230615 - 2¹¹ = 71228567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71230615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71230619) 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, 11851 + ... + 16819.

It is an arithmetic number, because the mean of its divisors is an integer number (5546520).

Almost surely, 2^71230615 is an apocalyptic number.

71230615 is a deficient number, since it is larger than the sum of its proper divisors (17513705).

71230615 is a wasteful number, since it uses less digits than its factorization.

71230615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 71230615 is about 8439.8231616545. The cubic root of 71230615 is about 414.5296165571.

The spelling of 71230615 in words is "seventy-one million, two hundred thirty thousand, six hundred fifteen".