213353453 has 2 divisors, whose sum is σ = 213353454. Its totient is φ = 213353452.

The previous prime is 213353431. The next prime is 213353473. The reversal of 213353453 is 354353312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129117769 + 84235684 = 11363^2 + 9178^2 .

It is a cyclic number.

It is not a de Polignac number, because 213353453 - 2¹⁶ = 213287917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213353473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106676726 + 106676727.

It is an arithmetic number, because the mean of its divisors is an integer number (106676727).

Almost surely, 2^213353453 is an apocalyptic number.

It is an amenable number.

213353453 is a deficient number, since it is larger than the sum of its proper divisors (1).

213353453 is an equidigital number, since it uses as much as digits as its factorization.

213353453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 29.

The square root of 213353453 is about 14606.6236002712. The cubic root of 213353453 is about 597.5394165275.

The spelling of 213353453 in words is "two hundred thirteen million, three hundred fifty-three thousand, four hundred fifty-three".