71520315 has 8 divisors (see below), whose sum is σ = 114432528. Its totient is φ = 38144160.

The previous prime is 71520301. The next prime is 71520329. The reversal of 71520315 is 51302517.

It is an interprime number because it is at equal distance from previous prime (71520301) and next prime (71520329).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71520315 - 2⁹ = 71519803 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2383996 + ... + 2384025.

It is an arithmetic number, because the mean of its divisors is an integer number (14304066).

Almost surely, 2^71520315 is an apocalyptic number.

71520315 is a deficient number, since it is larger than the sum of its proper divisors (42912213).

71520315 is a wasteful number, since it uses less digits than its factorization.

71520315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768029.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 71520315 is about 8456.9684284618. The cubic root of 71520315 is about 415.0908302663.

The spelling of 71520315 in words is "seventy-one million, five hundred twenty thousand, three hundred fifteen".