1199279 has 4 divisors (see below), whose sum is σ = 1202400. Its totient is φ = 1196160.

The previous prime is 1199257. The next prime is 1199309. The reversal of 1199279 is 9729911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1199279 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 (1199879) 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, 887 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (300600).

2^1199279 is an apocalyptic number.

1199279 is a deficient number, since it is larger than the sum of its proper divisors (3121).

1199279 is an equidigital number, since it uses as much as digits as its factorization.

1199279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its digits is 10206, while the sum is 38.

The square root of 1199279 is about 1095.1159755935. The cubic root of 1199279 is about 106.2445699647.

The spelling of 1199279 in words is "one million, one hundred ninety-nine thousand, two hundred seventy-nine".