1205119 has 2 divisors, whose sum is σ = 1205120. Its totient is φ = 1205118.

The previous prime is 1205117. The next prime is 1205123. The reversal of 1205119 is 9115021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1205119 - 2¹ = 1205117 is a prime.

It is a super-2 number, since 2×1205119² = 2904623608322, which contains 22 as substring.

Together with 1205117, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1205096 and 1205105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602559 + 602560.

It is an arithmetic number, because the mean of its divisors is an integer number (602560).

2^1205119 is an apocalyptic number.

1205119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205119 is an equidigital number, since it uses as much as digits as its factorization.

1205119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1205119 is about 1097.7791216816. The cubic root of 1205119 is about 106.4167467092.

It can be divided in two parts, 1 and 205119, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 1205119 in words is "one million, two hundred five thousand, one hundred nineteen".