11251279 has 4 divisors (see below), whose sum is σ = 12116776. Its totient is φ = 10385784.

The previous prime is 11251277. The next prime is 11251309. The reversal of 11251279 is 97215211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97215211 = 103 ⋅943837.

It is a cyclic number.

It is not a de Polignac number, because 11251279 - 2¹ = 11251277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11251277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432729 + ... + 432754.

It is an arithmetic number, because the mean of its divisors is an integer number (3029194).

Almost surely, 2^11251279 is an apocalyptic number.

11251279 is a deficient number, since it is larger than the sum of its proper divisors (865497).

11251279 is an equidigital number, since it uses as much as digits as its factorization.

11251279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865496.

The product of its digits is 1260, while the sum is 28.

The square root of 11251279 is about 3354.2926228938. The cubic root of 11251279 is about 224.0787284382.

The spelling of 11251279 in words is "eleven million, two hundred fifty-one thousand, two hundred seventy-nine".