1279199 has 8 divisors (see below), whose sum is σ = 1384128. Its totient is φ = 1177600.

The previous prime is 1279193. The next prime is 1279211. The reversal of 1279199 is 9919721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1279199 - 2⁴ = 1279183 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 (1279193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (173016).

2^1279199 is an apocalyptic number.

1279199 is a deficient number, since it is larger than the sum of its proper divisors (104929).

1279199 is a wasteful number, since it uses less digits than its factorization.

1279199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

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

The square root of 1279199 is about 1131.0167991679. The cubic root of 1279199 is about 108.5540515158.

Subtracting from 1279199 its sum of digits (38), we obtain a square (1279161 = 1131²).

The spelling of 1279199 in words is "one million, two hundred seventy-nine thousand, one hundred ninety-nine".