454220155 has 4 divisors (see below), whose sum is σ = 545064192. Its totient is φ = 363376120.

The previous prime is 454220101. The next prime is 454220159. The reversal of 454220155 is 551022454.

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

It is not a de Polignac number, because 454220155 - 2¹⁵ = 454187387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454220159) 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, 45422011 + ... + 45422020.

It is an arithmetic number, because the mean of its divisors is an integer number (136266048).

Almost surely, 2^454220155 is an apocalyptic number.

454220155 is a deficient number, since it is larger than the sum of its proper divisors (90844037).

454220155 is an equidigital number, since it uses as much as digits as its factorization.

454220155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90844036.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 454220155 is about 21312.4413195673. The cubic root of 454220155 is about 768.6974971965.

The spelling of 454220155 in words is "four hundred fifty-four million, two hundred twenty thousand, one hundred fifty-five".