71451 has 12 divisors (see below), whose sum is σ = 109512. Its totient is φ = 44736.

The previous prime is 71443. The next prime is 71453. The reversal of 71451 is 15417.

It is not a de Polignac number, because 71451 - 2³ = 71443 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 71451.

It is not an unprimeable number, because it can be changed into a prime (71453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81 + ... + 386.

It is an arithmetic number, because the mean of its divisors is an integer number (9126).

2⁷¹⁴⁵¹ is an apocalyptic number.

71451 is a deficient number, since it is larger than the sum of its proper divisors (38061).

71451 is a wasteful number, since it uses less digits than its factorization.

71451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 71451 is about 267.3031986341. The cubic root of 71451 is about 41.4956689727.

Adding to 71451 its reverse (15417), we get a palindrome (86868).

The spelling of 71451 in words is "seventy-one thousand, four hundred fifty-one".