1601360289 has 9 divisors (see below), whose sum is σ = 2313249393. Its totient is φ = 1067493492.

The previous prime is 1601360287. The next prime is 1601360323. The reversal of 1601360289 is 9820631061.

The square root of 1601360289 is 40017.

It is a perfect power (a square), and thus also a powerful number.

1601360289 is a `hidden beast` number, since 16 + 0 + 1 + 360 + 289 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1601360289 - 2¹ = 1601360287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1601360281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 113382 + ... + 126720.

Almost surely, 2^1601360289 is an apocalyptic number.

1601360289 is the 40017-th square number.

1601360289 is the 20009-th centered octagonal number.

It is an amenable number.

1601360289 is a deficient number, since it is larger than the sum of its proper divisors (711889104).

1601360289 is an frugal number, since it uses more digits than its factorization.

1601360289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26684 (or 13342 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The cubic root of 1601360289 is about 1169.9384604932.

Multiplying 1601360289 by its sum of digits (36), we get a square (57648970404 = 240102²).

The spelling of 1601360289 in words is "one billion, six hundred one million, three hundred sixty thousand, two hundred eighty-nine".