1082378189 has 2 divisors, whose sum is σ = 1082378190. Its totient is φ = 1082378188.

The previous prime is 1082378177. The next prime is 1082378203. The reversal of 1082378189 is 9818732801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072562500 + 9815689 = 32750^2 + 3133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082378189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1082378789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541189094 + 541189095.

It is an arithmetic number, because the mean of its divisors is an integer number (541189095).

Almost surely, 2^1082378189 is an apocalyptic number.

It is an amenable number.

1082378189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1082378189 is an equidigital number, since it uses as much as digits as its factorization.

1082378189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 1082378189 is about 32899.5165465999. The cubic root of 1082378189 is about 1026.7380985020.

The spelling of 1082378189 in words is "one billion, eighty-two million, three hundred seventy-eight thousand, one hundred eighty-nine".