455191 has 4 divisors (see below), whose sum is σ = 496584. Its totient is φ = 413800.

The previous prime is 455177. The next prime is 455201. The reversal of 455191 is 191554.

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 455191 - 2⁵ = 455159 is a prime.

455191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20680 + ... + 20701.

It is an arithmetic number, because the mean of its divisors is an integer number (124146).

2⁴⁵⁵¹⁹¹ is an apocalyptic number.

455191 is a deficient number, since it is larger than the sum of its proper divisors (41393).

455191 is a wasteful number, since it uses less digits than its factorization.

455191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41392.

The product of its digits is 900, while the sum is 25.

The square root of 455191 is about 674.6784419262. The cubic root of 455191 is about 76.9244775899.

It can be divided in two parts, 455 and 191, that added together give a palindrome (646).

The spelling of 455191 in words is "four hundred fifty-five thousand, one hundred ninety-one".