212124149 has 2 divisors, whose sum is σ = 212124150. Its totient is φ = 212124148.

The previous prime is 212124131. The next prime is 212124173. The reversal of 212124149 is 941421212.

212124149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174055249 + 38068900 = 13193^2 + 6170^2 .

It is a cyclic number.

It is not a de Polignac number, because 212124149 - 2²⁴ = 195346933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212124109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106062074 + 106062075.

It is an arithmetic number, because the mean of its divisors is an integer number (106062075).

Almost surely, 2^212124149 is an apocalyptic number.

It is an amenable number.

212124149 is a deficient number, since it is larger than the sum of its proper divisors (1).

212124149 is an equidigital number, since it uses as much as digits as its factorization.

212124149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 212124149 is about 14564.4824487518. The cubic root of 212124149 is about 596.3895672767.

The spelling of 212124149 in words is "two hundred twelve million, one hundred twenty-four thousand, one hundred forty-nine".