213130453 has 4 divisors (see below), whose sum is σ = 213222348. Its totient is φ = 213038560.

The previous prime is 213130451. The next prime is 213130469. The reversal of 213130453 is 354031312.

213130453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23600164 + 189530289 = 4858^2 + 13767^2 .

It is a cyclic number.

It is not a de Polignac number, because 213130453 - 2¹ = 213130451 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 (213130451) 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, 42376 + ... + 47137.

It is an arithmetic number, because the mean of its divisors is an integer number (53305587).

Almost surely, 2^213130453 is an apocalyptic number.

It is an amenable number.

213130453 is a deficient number, since it is larger than the sum of its proper divisors (91895).

213130453 is an equidigital number, since it uses as much as digits as its factorization.

213130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91894.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 213130453 is about 14598.9880813706. The cubic root of 213130453 is about 597.3311584463.

Adding to 213130453 its reverse (354031312), we get a palindrome (567161765).

The spelling of 213130453 in words is "two hundred thirteen million, one hundred thirty thousand, four hundred fifty-three".