1205411 has 2 divisors, whose sum is σ = 1205412. Its totient is φ = 1205410.

The previous prime is 1205387. The next prime is 1205437. The reversal of 1205411 is 1145021.

It is a weak prime.

It is an emirp because it is prime and its reverse (1145021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1205411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1205471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602705 + 602706.

It is an arithmetic number, because the mean of its divisors is an integer number (602706).

2^1205411 is an apocalyptic number.

1205411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205411 is an equidigital number, since it uses as much as digits as its factorization.

1205411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1205411 is about 1097.9121094150. The cubic root of 1205411 is about 106.4253409312.

The spelling of 1205411 in words is "one million, two hundred five thousand, four hundred eleven".