1100243959 has 2 divisors, whose sum is σ = 1100243960. Its totient is φ = 1100243958.

The previous prime is 1100243953. The next prime is 1100244071. The reversal of 1100243959 is 9593420011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100243959 - 2¹⁷ = 1100112887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100243953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550121979 + 550121980.

It is an arithmetic number, because the mean of its divisors is an integer number (550121980).

Almost surely, 2^1100243959 is an apocalyptic number.

1100243959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100243959 is an equidigital number, since it uses as much as digits as its factorization.

1100243959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1100243959 is about 33169.9255199646. The cubic root of 1100243959 is about 1032.3564231563.

The spelling of 1100243959 in words is "one billion, one hundred million, two hundred forty-three thousand, nine hundred fifty-nine".