1181279 has 8 divisors (see below), whose sum is σ = 1364688. Its totient is φ = 1010560.

The previous prime is 1181269. The next prime is 1181281. The reversal of 1181279 is 9721811.

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 1181279 - 2⁴ = 1181263 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 (1181209) 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, 2972 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (170586).

2^1181279 is an apocalyptic number.

1181279 is a deficient number, since it is larger than the sum of its proper divisors (183409).

1181279 is a wasteful number, since it uses less digits than its factorization.

1181279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345.

The product of its digits is 1008, while the sum is 29.

The square root of 1181279 is about 1086.8665971498. The cubic root of 1181279 is about 105.7103460391.

The spelling of 1181279 in words is "one million, one hundred eighty-one thousand, two hundred seventy-nine".