71282453 has 4 divisors (see below), whose sum is σ = 77762688. Its totient is φ = 64802220.

The previous prime is 71282441. The next prime is 71282521. The reversal of 71282453 is 35428217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71282453 - 2¹⁰ = 71281429 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 (71282153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240101 + ... + 3240122.

It is an arithmetic number, because the mean of its divisors is an integer number (19440672).

Almost surely, 2^71282453 is an apocalyptic number.

It is an amenable number.

71282453 is a deficient number, since it is larger than the sum of its proper divisors (6480235).

71282453 is a wasteful number, since it uses less digits than its factorization.

71282453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480234.

The product of its digits is 13440, while the sum is 32.

The square root of 71282453 is about 8442.8936390316. The cubic root of 71282453 is about 414.6301499942.

The spelling of 71282453 in words is "seventy-one million, two hundred eighty-two thousand, four hundred fifty-three".