1355771 has 2 divisors, whose sum is σ = 1355772. Its totient is φ = 1355770.

The previous prime is 1355759. The next prime is 1355777. The reversal of 1355771 is 1775531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355771 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1355777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677885 + 677886.

It is an arithmetic number, because the mean of its divisors is an integer number (677886).

2^1355771 is an apocalyptic number.

1355771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355771 is an equidigital number, since it uses as much as digits as its factorization.

1355771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3675, while the sum is 29.

The square root of 1355771 is about 1164.3757984431. The cubic root of 1355771 is about 110.6782066078.

The spelling of 1355771 in words is "one million, three hundred fifty-five thousand, seven hundred seventy-one".