864084149 has 2 divisors, whose sum is σ = 864084150. Its totient is φ = 864084148.

The previous prime is 864084127. The next prime is 864084157. The reversal of 864084149 is 941480468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860542225 + 3541924 = 29335^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 864084149 - 2¹² = 864080053 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 (864084119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432042074 + 432042075.

It is an arithmetic number, because the mean of its divisors is an integer number (432042075).

Almost surely, 2^864084149 is an apocalyptic number.

It is an amenable number.

864084149 is a deficient number, since it is larger than the sum of its proper divisors (1).

864084149 is an equidigital number, since it uses as much as digits as its factorization.

864084149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 864084149 is about 29395.3082821052. The cubic root of 864084149 is about 952.4715510593.

The spelling of 864084149 in words is "eight hundred sixty-four million, eighty-four thousand, one hundred forty-nine".