1164289 has 6 divisors (see below), whose sum is σ = 1354434. Its totient is φ = 997920.

The previous prime is 1164287. The next prime is 1164323. The reversal of 1164289 is 9824611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 148225 = 1008^2 + 385^2 .

It is not a de Polignac number, because 1164289 - 2¹ = 1164287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1164289.

It is not an unprimeable number, because it can be changed into a prime (1164287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11832 + ... + 11929.

It is an arithmetic number, because the mean of its divisors is an integer number (225739).

2^1164289 is an apocalyptic number.

It is an amenable number.

1164289 is a deficient number, since it is larger than the sum of its proper divisors (190145).

1164289 is an equidigital number, since it uses as much as digits as its factorization.

1164289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23775 (or 23768 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1164289 is about 1079.0222425882. The cubic root of 1164289 is about 105.2010960962.

The spelling of 1164289 in words is "one million, one hundred sixty-four thousand, two hundred eighty-nine".