213184087 has 2 divisors, whose sum is σ = 213184088. Its totient is φ = 213184086.

The previous prime is 213184039. The next prime is 213184109. The reversal of 213184087 is 780481312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213184087 - 2²⁷ = 78966359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213184187) 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, 106592043 + 106592044.

It is an arithmetic number, because the mean of its divisors is an integer number (106592044).

Almost surely, 2^213184087 is an apocalyptic number.

213184087 is a deficient number, since it is larger than the sum of its proper divisors (1).

213184087 is an equidigital number, since it uses as much as digits as its factorization.

213184087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 213184087 is about 14600.8248739583. The cubic root of 213184087 is about 597.3812601123.

The spelling of 213184087 in words is "two hundred thirteen million, one hundred eighty-four thousand, eighty-seven".