451148543 has 4 divisors (see below), whose sum is σ = 462152208. Its totient is φ = 440144880.

The previous prime is 451148527. The next prime is 451148569. The reversal of 451148543 is 345841154.

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

It is a cyclic number.

It is not a de Polignac number, because 451148543 - 2⁴ = 451148527 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 (451148513) 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, 5501771 + ... + 5501852.

It is an arithmetic number, because the mean of its divisors is an integer number (115538052).

Almost surely, 2^451148543 is an apocalyptic number.

451148543 is a deficient number, since it is larger than the sum of its proper divisors (11003665).

451148543 is a wasteful number, since it uses less digits than its factorization.

451148543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003664.

The product of its digits is 38400, while the sum is 35.

The square root of 451148543 is about 21240.2576020160. The cubic root of 451148543 is about 766.9608335757.

Adding to 451148543 its reverse (345841154), we get a palindrome (796989697).

The spelling of 451148543 in words is "four hundred fifty-one million, one hundred forty-eight thousand, five hundred forty-three".