1155379 has 2 divisors, whose sum is σ = 1155380. Its totient is φ = 1155378.

The previous prime is 1155377. The next prime is 1155403. The reversal of 1155379 is 9735511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155379 - 2¹ = 1155377 is a prime.

Together with 1155377, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155379.

It is not a weakly prime, because it can be changed into another prime (1155373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577689 + 577690.

It is an arithmetic number, because the mean of its divisors is an integer number (577690).

2^1155379 is an apocalyptic number.

1155379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155379 is an equidigital number, since it uses as much as digits as its factorization.

1155379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 31.

The square root of 1155379 is about 1074.8855753056. The cubic root of 1155379 is about 104.9320497622.

The spelling of 1155379 in words is "one million, one hundred fifty-five thousand, three hundred seventy-nine".