71465 has 4 divisors (see below), whose sum is σ = 85764. Its totient is φ = 57168.

The previous prime is 71453. The next prime is 71471. The reversal of 71465 is 56417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8464 + 63001 = 92^2 + 251^2 .

It is a cyclic number.

It is not a de Polignac number, because 71465 - 2⁸ = 71209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71465.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (21441).

2⁷¹⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

71465 is a deficient number, since it is larger than the sum of its proper divisors (14299).

71465 is a wasteful number, since it uses less digits than its factorization.

71465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14298.

The product of its digits is 840, while the sum is 23.

The square root of 71465 is about 267.3293848420. The cubic root of 71465 is about 41.4983789951.

The spelling of 71465 in words is "seventy-one thousand, four hundred sixty-five".