1364855189 has 2 divisors, whose sum is σ = 1364855190. Its totient is φ = 1364855188.

The previous prime is 1364855153. The next prime is 1364855207. The reversal of 1364855189 is 9815584631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1357922500 + 6932689 = 36850^2 + 2633^2 .

It is an emirp because it is prime and its reverse (9815584631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1364855189 - 2¹⁶ = 1364789653 is a prime.

It is a super-3 number, since 3×1364855189³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364855689) 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, 682427594 + 682427595.

It is an arithmetic number, because the mean of its divisors is an integer number (682427595).

Almost surely, 2^1364855189 is an apocalyptic number.

It is an amenable number.

1364855189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364855189 is an equidigital number, since it uses as much as digits as its factorization.

1364855189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 50.

The square root of 1364855189 is about 36943.9465812736. The cubic root of 1364855189 is about 1109.2485211984.

The spelling of 1364855189 in words is "one billion, three hundred sixty-four million, eight hundred fifty-five thousand, one hundred eighty-nine".