1264369 has 4 divisors (see below), whose sum is σ = 1266660. Its totient is φ = 1262080.

The previous prime is 1264363. The next prime is 1264387. The reversal of 1264369 is 9634621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9634621 = 1091 ⋅8831.

It can be written as a sum of positive squares in 2 ways, for example, as 97969 + 1166400 = 313^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264369 - 2⁵ = 1264337 is a prime.

It is a super-2 number, since 2×1264369² = 3197257936322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1264369 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264369.

It is not an unprimeable number, because it can be changed into a prime (1264363) 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, 249 + ... + 1609.

It is an arithmetic number, because the mean of its divisors is an integer number (316665).

2^1264369 is an apocalyptic number.

It is an amenable number.

1264369 is a deficient number, since it is larger than the sum of its proper divisors (2291).

1264369 is an equidigital number, since it uses as much as digits as its factorization.

1264369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290.

The product of its digits is 7776, while the sum is 31.

The square root of 1264369 is about 1124.4416392148. The cubic root of 1264369 is about 108.1329238961.

The spelling of 1264369 in words is "one million, two hundred sixty-four thousand, three hundred sixty-nine".