71500715 has 24 divisors (see below), whose sum is σ = 101575824. Its totient is φ = 47995200.

The previous prime is 71500703. The next prime is 71500729. The reversal of 71500715 is 51700517.

It is not a de Polignac number, because 71500715 - 2⁸ = 71500459 is a prime.

It is a super-2 number, since 2×71500715² = 10224704491022450, which contains 22 as substring.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 3320 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (4232326).

Almost surely, 2^71500715 is an apocalyptic number.

71500715 is a deficient number, since it is larger than the sum of its proper divisors (30075109).

71500715 is a wasteful number, since it uses less digits than its factorization.

71500715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9131 (or 9120 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 71500715 is about 8455.8095413745. The cubic root of 71500715 is about 415.0529085299.

It can be divided in two parts, 71500 and 715, that multiplied together give a square (51122500 = 7150²).

The spelling of 71500715 in words is "seventy-one million, five hundred thousand, seven hundred fifteen".