213214087 has 2 divisors, whose sum is σ = 213214088. Its totient is φ = 213214086.

The previous prime is 213214073. The next prime is 213214103. The reversal of 213214087 is 780412312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213214087 - 2²³ = 204825479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213214487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106607043 + 106607044.

It is an arithmetic number, because the mean of its divisors is an integer number (106607044).

Almost surely, 2^213214087 is an apocalyptic number.

213214087 is a deficient number, since it is larger than the sum of its proper divisors (1).

213214087 is an equidigital number, since it uses as much as digits as its factorization.

213214087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 213214087 is about 14601.8521770356. The cubic root of 213214087 is about 597.4092806484.

Adding to 213214087 its reverse (780412312), we get a palindrome (993626399).

The spelling of 213214087 in words is "two hundred thirteen million, two hundred fourteen thousand, eighty-seven".