71165153 has 6 divisors (see below), whose sum is σ = 71526054. Its totient is φ = 70805504.

The previous prime is 71165141. The next prime is 71165173. The reversal of 71165153 is 35156117.

It can be written as a sum of positive squares in 3 ways, for example, as 13890529 + 57274624 = 3727^2 + 7568^2 .

It is not a de Polignac number, because 71165153 - 2⁴ = 71165137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71165123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158273 + ... + 158721.

It is an arithmetic number, because the mean of its divisors is an integer number (11921009).

Almost surely, 2^71165153 is an apocalyptic number.

It is an amenable number.

71165153 is a deficient number, since it is larger than the sum of its proper divisors (360901).

71165153 is an frugal number, since it uses more digits than its factorization.

71165153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 802 counting only the distinct ones).

The product of its digits is 3150, while the sum is 29.

The square root of 71165153 is about 8435.9441083971. The cubic root of 71165153 is about 414.4025913317.

The spelling of 71165153 in words is "seventy-one million, one hundred sixty-five thousand, one hundred fifty-three".