213415453 has 4 divisors (see below), whose sum is σ = 213456640. Its totient is φ = 213374268.

The previous prime is 213415451. The next prime is 213415463. The reversal of 213415453 is 354514312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213415453 - 2¹ = 213415451 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 (213415451) 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, 11475 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (53364160).

Almost surely, 2^213415453 is an apocalyptic number.

It is an amenable number.

213415453 is a deficient number, since it is larger than the sum of its proper divisors (41187).

213415453 is an equidigital number, since it uses as much as digits as its factorization.

213415453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41186.

The product of its digits is 7200, while the sum is 28.

The square root of 213415453 is about 14608.7457709415. The cubic root of 213415453 is about 597.5972920938.

Adding to 213415453 its reverse (354514312), we get a palindrome (567929765).

The spelling of 213415453 in words is "two hundred thirteen million, four hundred fifteen thousand, four hundred fifty-three".