1600243 has 2 divisors, whose sum is σ = 1600244. Its totient is φ = 1600242.

The previous prime is 1600241. The next prime is 1600253. The reversal of 1600243 is 3420061.

It is a weak prime.

It is an emirp because it is prime and its reverse (3420061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1600243 - 2¹ = 1600241 is a prime.

Together with 1600241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1600241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800121 + 800122.

It is an arithmetic number, because the mean of its divisors is an integer number (800122).

2^1600243 is an apocalyptic number.

1600243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600243 is an equidigital number, since it uses as much as digits as its factorization.

1600243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1600243 is about 1265.0071146045. The cubic root of 1600243 is about 116.9666303647.

The spelling of 1600243 in words is "one million, six hundred thousand, two hundred forty-three".