340545589 has 2 divisors, whose sum is σ = 340545590. Its totient is φ = 340545588.

The previous prime is 340545553. The next prime is 340545593. The reversal of 340545589 is 985545043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236852100 + 103693489 = 15390^2 + 10183^2 .

It is a cyclic number.

It is not a de Polignac number, because 340545589 - 2⁷ = 340545461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340546589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170272794 + 170272795.

It is an arithmetic number, because the mean of its divisors is an integer number (170272795).

Almost surely, 2^340545589 is an apocalyptic number.

It is an amenable number.

340545589 is a deficient number, since it is larger than the sum of its proper divisors (1).

340545589 is an equidigital number, since it uses as much as digits as its factorization.

340545589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 340545589 is about 18453.8773432577. The cubic root of 340545589 is about 698.3263341891.

The spelling of 340545589 in words is "three hundred forty million, five hundred forty-five thousand, five hundred eighty-nine".