1264279 has 4 divisors (see below), whose sum is σ = 1330840. Its totient is φ = 1197720.

The previous prime is 1264271. The next prime is 1264301. The reversal of 1264279 is 9724621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9724621 = 1213 ⋅8017.

It is a cyclic number.

It is not a de Polignac number, because 1264279 - 2³ = 1264271 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 1264279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264271) 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, 33252 + ... + 33289.

It is an arithmetic number, because the mean of its divisors is an integer number (332710).

2^1264279 is an apocalyptic number.

1264279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1264279 is a deficient number, since it is larger than the sum of its proper divisors (66561).

1264279 is an equidigital number, since it uses as much as digits as its factorization.

1264279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66560.

The product of its digits is 6048, while the sum is 31.

The square root of 1264279 is about 1124.4016186399. The cubic root of 1264279 is about 108.1303581383.

It can be divided in two parts, 12642 and 79, that added together give a palindrome (12721).

The spelling of 1264279 in words is "one million, two hundred sixty-four thousand, two hundred seventy-nine".