1289160 has 48 divisors (see below), whose sum is σ = 4190940. Its totient is φ = 343680.

The previous prime is 1289159. The next prime is 1289179. The reversal of 1289160 is 619821.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 30276 = 1122^2 + 174^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1431 + ... + 2150.

2^1289160 is an apocalyptic number.

1289160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1289160 is an abundant number, since it is smaller than the sum of its proper divisors (2901780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289160 is a wasteful number, since it uses less digits than its factorization.

1289160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598 (or 3591 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1289160 is about 1135.4118195615. The cubic root of 1289160 is about 108.8350899648.

The spelling of 1289160 in words is "one million, two hundred eighty-nine thousand, one hundred sixty".