945161549 has 2 divisors, whose sum is σ = 945161550. Its totient is φ = 945161548.

The previous prime is 945161537. The next prime is 945161611.

945161549 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903002500 + 42159049 = 30050^2 + 6493^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 945161549 - 2¹² = 945157453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945161249) 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, 472580774 + 472580775.

It is an arithmetic number, because the mean of its divisors is an integer number (472580775).

Almost surely, 2^945161549 is an apocalyptic number.

It is an amenable number.

945161549 is a deficient number, since it is larger than the sum of its proper divisors (1).

945161549 is an equidigital number, since it uses as much as digits as its factorization.

945161549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 945161549 is about 30743.4797802721. The cubic root of 945161549 is about 981.3758091816.

The spelling of 945161549 in words is "nine hundred forty-five million, one hundred sixty-one thousand, five hundred forty-nine".