1090880243 has 2 divisors, whose sum is σ = 1090880244. Its totient is φ = 1090880242.

The previous prime is 1090880233. The next prime is 1090880267. The reversal of 1090880243 is 3420880901.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1090880243 - 2⁴ = 1090880227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1090880233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545440121 + 545440122.

It is an arithmetic number, because the mean of its divisors is an integer number (545440122).

Almost surely, 2^1090880243 is an apocalyptic number.

1090880243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090880243 is an equidigital number, since it uses as much as digits as its factorization.

1090880243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1090880243 is about 33028.4762439928. The cubic root of 1090880243 is about 1029.4194242797.

The spelling of 1090880243 in words is "one billion, ninety million, eight hundred eighty thousand, two hundred forty-three".