71315205 has 32 divisors (see below), whose sum is σ = 127128960. Its totient is φ = 33895680.

The previous prime is 71315171. The next prime is 71315219. The reversal of 71315205 is 50251317.

It is not a de Polignac number, because 71315205 - 2⁶ = 71315141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 651 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (3972780).

Almost surely, 2^71315205 is an apocalyptic number.

It is an amenable number.

71315205 is a deficient number, since it is larger than the sum of its proper divisors (55813755).

71315205 is a wasteful number, since it uses less digits than its factorization.

71315205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661.

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

The square root of 71315205 is about 8444.8330356497. The cubic root of 71315205 is about 414.6936433542.

The spelling of 71315205 in words is "seventy-one million, three hundred fifteen thousand, two hundred five".