213369349 has 2 divisors, whose sum is σ = 213369350. Its totient is φ = 213369348.

The previous prime is 213369337. The next prime is 213369379. The reversal of 213369349 is 943963312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213364449 + 4900 = 14607^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 213369349 - 2¹³ = 213361157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213369379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106684674 + 106684675.

It is an arithmetic number, because the mean of its divisors is an integer number (106684675).

Almost surely, 2^213369349 is an apocalyptic number.

It is an amenable number.

213369349 is a deficient number, since it is larger than the sum of its proper divisors (1).

213369349 is an equidigital number, since it uses as much as digits as its factorization.

213369349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 40.

The square root of 213369349 is about 14607.1677268388. The cubic root of 213369349 is about 597.5542561446.

The spelling of 213369349 in words is "two hundred thirteen million, three hundred sixty-nine thousand, three hundred forty-nine".