8212442149 has 2 divisors, whose sum is σ = 8212442150. Its totient is φ = 8212442148.

The previous prime is 8212442113. The next prime is 8212442177. The reversal of 8212442149 is 9412442128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6591816100 + 1620626049 = 81190^2 + 40257^2 .

It is a cyclic number.

It is not a de Polignac number, because 8212442149 - 2¹¹ = 8212440101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8212440149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106221074 + 4106221075.

It is an arithmetic number, because the mean of its divisors is an integer number (4106221075).

Almost surely, 2^8212442149 is an apocalyptic number.

It is an amenable number.

8212442149 is a deficient number, since it is larger than the sum of its proper divisors (1).

8212442149 is an equidigital number, since it uses as much as digits as its factorization.

8212442149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 37.

The square root of 8212442149 is about 90622.5256158754. The cubic root of 8212442149 is about 2017.5490769826.

The spelling of 8212442149 in words is "eight billion, two hundred twelve million, four hundred forty-two thousand, one hundred forty-nine".