455319391 has 4 divisors (see below), whose sum is σ = 466424784. Its totient is φ = 444214000.

The previous prime is 455319383. The next prime is 455319457. The reversal of 455319391 is 193913554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193913554 = 2 ⋅96956777.

It is a cyclic number.

It is not a de Polignac number, because 455319391 - 2³ = 455319383 is a prime.

It is a super-2 number, since 2×455319391² = 414631495641221762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455316391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552635 + ... + 5552716.

It is an arithmetic number, because the mean of its divisors is an integer number (116606196).

Almost surely, 2^455319391 is an apocalyptic number.

455319391 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

455319391 is a deficient number, since it is larger than the sum of its proper divisors (11105393).

455319391 is a wasteful number, since it uses less digits than its factorization.

455319391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105392.

The product of its digits is 72900, while the sum is 40.

The square root of 455319391 is about 21338.2143348500. The cubic root of 455319391 is about 769.3170933961.

The spelling of 455319391 in words is "four hundred fifty-five million, three hundred nineteen thousand, three hundred ninety-one".