213057799 has 2 divisors, whose sum is σ = 213057800. Its totient is φ = 213057798.

The previous prime is 213057797. The next prime is 213057833. The reversal of 213057799 is 997750312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213057799 - 2¹ = 213057797 is a prime.

Together with 213057797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213057797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106528899 + 106528900.

It is an arithmetic number, because the mean of its divisors is an integer number (106528900).

Almost surely, 2^213057799 is an apocalyptic number.

213057799 is a deficient number, since it is larger than the sum of its proper divisors (1).

213057799 is an equidigital number, since it uses as much as digits as its factorization.

213057799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 213057799 is about 14596.4995461241. The cubic root of 213057799 is about 597.2632760302.

The spelling of 213057799 in words is "two hundred thirteen million, fifty-seven thousand, seven hundred ninety-nine".