1040321189 has 2 divisors, whose sum is σ = 1040321190. Its totient is φ = 1040321188.

The previous prime is 1040321159. The next prime is 1040321197. The reversal of 1040321189 is 9811230401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558518689 + 481802500 = 23633^2 + 21950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040321189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040321159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520160594 + 520160595.

It is an arithmetic number, because the mean of its divisors is an integer number (520160595).

Almost surely, 2^1040321189 is an apocalyptic number.

It is an amenable number.

1040321189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040321189 is an equidigital number, since it uses as much as digits as its factorization.

1040321189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1040321189 is about 32254.0104328128. The cubic root of 1040321189 is about 1013.2636929745.

The spelling of 1040321189 in words is "one billion, forty million, three hundred twenty-one thousand, one hundred eighty-nine".