2153330989 has 2 divisors, whose sum is σ = 2153330990. Its totient is φ = 2153330988.

The previous prime is 2153330983. The next prime is 2153330999. The reversal of 2153330989 is 9890333512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1563569764 + 589761225 = 39542^2 + 24285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153330989 - 2⁵ = 2153330957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153330983) 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, 1076665494 + 1076665495.

It is an arithmetic number, because the mean of its divisors is an integer number (1076665495).

Almost surely, 2^2153330989 is an apocalyptic number.

It is an amenable number.

2153330989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153330989 is an equidigital number, since it uses as much as digits as its factorization.

2153330989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 2153330989 is about 46403.9975540901. The cubic root of 2153330989 is about 1291.3290768801.

The spelling of 2153330989 in words is "two billion, one hundred fifty-three million, three hundred thirty thousand, nine hundred eighty-nine".