454542819 has 4 divisors (see below), whose sum is σ = 606057096. Its totient is φ = 303028544.

The previous prime is 454542797. The next prime is 454542841. The reversal of 454542819 is 918245454.

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

It is an interprime number because it is at equal distance from previous prime (454542797) and next prime (454542841).

It is a cyclic number.

It is not a de Polignac number, because 454542819 - 2¹⁹ = 454018531 is a prime.

It is a super-2 number, since 2×454542819² = 413218348608933522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (454542899) 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, 75757134 + ... + 75757139.

It is an arithmetic number, because the mean of its divisors is an integer number (151514274).

Almost surely, 2^454542819 is an apocalyptic number.

454542819 is a deficient number, since it is larger than the sum of its proper divisors (151514277).

454542819 is a wasteful number, since it uses less digits than its factorization.

454542819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151514276.

The product of its digits is 230400, while the sum is 42.

The square root of 454542819 is about 21320.0098264518. The cubic root of 454542819 is about 768.8794737839.

The spelling of 454542819 in words is "four hundred fifty-four million, five hundred forty-two thousand, eight hundred nineteen".