213443149 has 2 divisors, whose sum is σ = 213443150. Its totient is φ = 213443148.

The previous prime is 213443107. The next prime is 213443183. The reversal of 213443149 is 941344312.

213443149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112741924 + 100701225 = 10618^2 + 10035^2 .

It is a cyclic number.

It is not a de Polignac number, because 213443149 - 2¹⁵ = 213410381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213443149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213443189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721574 + 106721575.

It is an arithmetic number, because the mean of its divisors is an integer number (106721575).

Almost surely, 2^213443149 is an apocalyptic number.

It is an amenable number.

213443149 is a deficient number, since it is larger than the sum of its proper divisors (1).

213443149 is an equidigital number, since it uses as much as digits as its factorization.

213443149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 213443149 is about 14609.6936655085. The cubic root of 213443149 is about 597.6231420474.

The spelling of 213443149 in words is "two hundred thirteen million, four hundred forty-three thousand, one hundred forty-nine".