1355166443 has 2 divisors, whose sum is σ = 1355166444. Its totient is φ = 1355166442.

The previous prime is 1355166437. The next prime is 1355166467. The reversal of 1355166443 is 3446615531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1355166443 - 2⁴ = 1355166427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355166397 and 1355166406.

It is not a weakly prime, because it can be changed into another prime (1355166493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677583221 + 677583222.

It is an arithmetic number, because the mean of its divisors is an integer number (677583222).

Almost surely, 2^1355166443 is an apocalyptic number.

1355166443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355166443 is an equidigital number, since it uses as much as digits as its factorization.

1355166443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 1355166443 is about 36812.5853886955. The cubic root of 1355166443 is about 1106.6175318200.

The spelling of 1355166443 in words is "one billion, three hundred fifty-five million, one hundred sixty-six thousand, four hundred forty-three".