1945168 has 20 divisors (see below), whose sum is σ = 3832468. Its totient is φ = 956160.

The previous prime is 1945129. The next prime is 1945169. The reversal of 1945168 is 8615491.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 1317904 = 792^2 + 1148^2 .

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945169) 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 in 3 ways as a sum of consecutive naturals, for example, 21 + ... + 1972.

2^1945168 is an apocalyptic number.

It is an amenable number.

1945168 is a deficient number, since it is larger than the sum of its proper divisors (1887300).

1945168 is a wasteful number, since it uses less digits than its factorization.

1945168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2056 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 1945168 is about 1394.6927977157. The cubic root of 1945168 is about 124.8300196248.

The spelling of 1945168 in words is "one million, nine hundred forty-five thousand, one hundred sixty-eight".