4451146223 has 4 divisors (see below), whose sum is σ = 4535130168. Its totient is φ = 4367162280.

The previous prime is 4451146201. The next prime is 4451146243. The reversal of 4451146223 is 3226411544.

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 4451146223 - 2⁸ = 4451145967 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 4451146223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4451146243) 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, 41991893 + ... + 41991998.

It is an arithmetic number, because the mean of its divisors is an integer number (1133782542).

Almost surely, 2^4451146223 is an apocalyptic number.

4451146223 is a deficient number, since it is larger than the sum of its proper divisors (83983945).

4451146223 is an equidigital number, since it uses as much as digits as its factorization.

4451146223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83983944.

The product of its digits is 23040, while the sum is 32.

The square root of 4451146223 is about 66716.9110720813. The cubic root of 4451146223 is about 1644.9673682178.

Adding to 4451146223 its reverse (3226411544), we get a palindrome (7677557767).

The spelling of 4451146223 in words is "four billion, four hundred fifty-one million, one hundred forty-six thousand, two hundred twenty-three".