455145449 has 4 divisors (see below), whose sum is σ = 496522320. Its totient is φ = 413768580.

The previous prime is 455145443. The next prime is 455145487. The reversal of 455145449 is 944541554.

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 455145449 - 2¹² = 455141353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455145443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20688419 + ... + 20688440.

It is an arithmetic number, because the mean of its divisors is an integer number (124130580).

Almost surely, 2^455145449 is an apocalyptic number.

It is an amenable number.

455145449 is a deficient number, since it is larger than the sum of its proper divisors (41376871).

455145449 is a wasteful number, since it uses less digits than its factorization.

455145449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41376870.

The product of its digits is 288000, while the sum is 41.

The square root of 455145449 is about 21334.1381124244. The cubic root of 455145449 is about 769.2191155806.

The spelling of 455145449 in words is "four hundred fifty-five million, one hundred forty-five thousand, four hundred forty-nine".