213245099 has 2 divisors, whose sum is σ = 213245100. Its totient is φ = 213245098.

The previous prime is 213245083. The next prime is 213245143. The reversal of 213245099 is 990542312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213245099 - 2⁴ = 213245083 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213245009) 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, 106622549 + 106622550.

It is an arithmetic number, because the mean of its divisors is an integer number (106622550).

Almost surely, 2^213245099 is an apocalyptic number.

213245099 is a deficient number, since it is larger than the sum of its proper divisors (1).

213245099 is an equidigital number, since it uses as much as digits as its factorization.

213245099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 213245099 is about 14602.9140585022. The cubic root of 213245099 is about 597.4382436478.

The spelling of 213245099 in words is "two hundred thirteen million, two hundred forty-five thousand, ninety-nine".