11197279 has 2 divisors, whose sum is σ = 11197280. Its totient is φ = 11197278.

The previous prime is 11197267. The next prime is 11197301. The reversal of 11197279 is 97279111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11197279 - 2⁵ = 11197247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11197379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5598639 + 5598640.

It is an arithmetic number, because the mean of its divisors is an integer number (5598640).

Almost surely, 2^11197279 is an apocalyptic number.

11197279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11197279 is an equidigital number, since it uses as much as digits as its factorization.

11197279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 37.

The square root of 11197279 is about 3346.2335543115. The cubic root of 11197279 is about 223.7196681832.

It can be divided in two parts, 11197 and 279, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 11197279 in words is "eleven million, one hundred ninety-seven thousand, two hundred seventy-nine".