4545449 has 2 divisors, whose sum is σ = 4545450. Its totient is φ = 4545448.

The previous prime is 4545433. The next prime is 4545451. The reversal of 4545449 is 9445454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4545424 + 25 = 2132^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 4545449 - 2⁴ = 4545433 is a prime.

It is a super-2 number, since 2×4545449² = 41322213223202, which contains 22 as substring.

Together with 4545451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4545469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272724 + 2272725.

It is an arithmetic number, because the mean of its divisors is an integer number (2272725).

Almost surely, 2^4545449 is an apocalyptic number.

It is an amenable number.

4545449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4545449 is an equidigital number, since it uses as much as digits as its factorization.

4545449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 4545449 is about 2132.0058630313. The cubic root of 4545449 is about 165.6503138715.

It can be divided in two parts, 4545 and 449, that added together give a palindrome (4994).

The spelling of 4545449 in words is "four million, five hundred forty-five thousand, four hundred forty-nine".