1090270043 has 2 divisors, whose sum is σ = 1090270044. Its totient is φ = 1090270042.

The previous prime is 1090270039. The next prime is 1090270063. The reversal of 1090270043 is 3400720901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1090270043 - 2² = 1090270039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1090269994 and 1090270021.

It is not a weakly prime, because it can be changed into another prime (1090270003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545135021 + 545135022.

It is an arithmetic number, because the mean of its divisors is an integer number (545135022).

Almost surely, 2^1090270043 is an apocalyptic number.

1090270043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090270043 is an equidigital number, since it uses as much as digits as its factorization.

1090270043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1090270043 is about 33019.2374684819. The cubic root of 1090270043 is about 1029.2274481531.

Adding to 1090270043 its reverse (3400720901), we get a palindrome (4490990944).

The spelling of 1090270043 in words is "one billion, ninety million, two hundred seventy thousand, forty-three".