1181879 has 2 divisors, whose sum is σ = 1181880. Its totient is φ = 1181878.

The previous prime is 1181839. The next prime is 1181881. The reversal of 1181879 is 9781811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1181879 - 2²⁰ = 133303 is a prime.

Together with 1181881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1181839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590939 + 590940.

It is an arithmetic number, because the mean of its divisors is an integer number (590940).

2^1181879 is an apocalyptic number.

1181879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181879 is an equidigital number, since it uses as much as digits as its factorization.

1181879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 35.

The square root of 1181879 is about 1087.1425849446. The cubic root of 1181879 is about 105.7282406184.

The spelling of 1181879 in words is "one million, one hundred eighty-one thousand, eight hundred seventy-nine".