213204499 has 2 divisors, whose sum is σ = 213204500. Its totient is φ = 213204498.

The previous prime is 213204461. The next prime is 213204539. The reversal of 213204499 is 994402312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213204499 - 2⁷ = 213204371 is a prime.

It is not a weakly prime, because it can be changed into another prime (213214499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106602249 + 106602250.

It is an arithmetic number, because the mean of its divisors is an integer number (106602250).

Almost surely, 2^213204499 is an apocalyptic number.

213204499 is a deficient number, since it is larger than the sum of its proper divisors (1).

213204499 is an equidigital number, since it uses as much as digits as its factorization.

213204499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 213204499 is about 14601.5238588306. The cubic root of 213204499 is about 597.4003255709.

The spelling of 213204499 in words is "two hundred thirteen million, two hundred four thousand, four hundred ninety-nine".