455233213 has 4 divisors (see below), whose sum is σ = 470930940. Its totient is φ = 439535488.

The previous prime is 455233193. The next prime is 455233223. The reversal of 455233213 is 312332554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312332554 = 2 ⋅156166277.

It can be written as a sum of positive squares in 2 ways, for example, as 148913209 + 306320004 = 12203^2 + 17502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455233213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455233223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7848820 + ... + 7848877.

It is an arithmetic number, because the mean of its divisors is an integer number (117732735).

Almost surely, 2^455233213 is an apocalyptic number.

It is an amenable number.

455233213 is a deficient number, since it is larger than the sum of its proper divisors (15697727).

455233213 is a wasteful number, since it uses less digits than its factorization.

455233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15697726.

The product of its digits is 10800, while the sum is 28.

The square root of 455233213 is about 21336.1949044341. The cubic root of 455233213 is about 769.2685542878.

Adding to 455233213 its reverse (312332554), we get a palindrome (767565767).

The spelling of 455233213 in words is "four hundred fifty-five million, two hundred thirty-three thousand, two hundred thirteen".