146980489 has 2 divisors, whose sum is σ = 146980490. Its totient is φ = 146980488.

The previous prime is 146980481. The next prime is 146980549. The reversal of 146980489 is 984089641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114661264 + 32319225 = 10708^2 + 5685^2 .

It is a cyclic number.

It is not a de Polignac number, because 146980489 - 2³ = 146980481 is a prime.

It is not a weakly prime, because it can be changed into another prime (146980481) 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, 73490244 + 73490245.

It is an arithmetic number, because the mean of its divisors is an integer number (73490245).

Almost surely, 2^146980489 is an apocalyptic number.

It is an amenable number.

146980489 is a deficient number, since it is larger than the sum of its proper divisors (1).

146980489 is an equidigital number, since it uses as much as digits as its factorization.

146980489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 146980489 is about 12123.5510062028. The cubic root of 146980489 is about 527.7398581247.

The spelling of 146980489 in words is "one hundred forty-six million, nine hundred eighty thousand, four hundred eighty-nine".