451120543 has 4 divisors (see below), whose sum is σ = 452918088. Its totient is φ = 449323000.

The previous prime is 451120529. The next prime is 451120547. The reversal of 451120543 is 345021154.

It is a happy number.

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 451120543 - 2⁹ = 451120031 is a prime.

It is a super-2 number, since 2×451120543² = 407019488633229698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451120547) 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, 898396 + ... + 898897.

It is an arithmetic number, because the mean of its divisors is an integer number (113229522).

Almost surely, 2^451120543 is an apocalyptic number.

451120543 is a deficient number, since it is larger than the sum of its proper divisors (1797545).

451120543 is a wasteful number, since it uses less digits than its factorization.

451120543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797544.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 451120543 is about 21239.5984660728. The cubic root of 451120543 is about 766.9449664089.

Adding to 451120543 its reverse (345021154), we get a palindrome (796141697).

The spelling of 451120543 in words is "four hundred fifty-one million, one hundred twenty thousand, five hundred forty-three".