1090883909 has 2 divisors, whose sum is σ = 1090883910. Its totient is φ = 1090883908.

The previous prime is 1090883891. The next prime is 1090883921. The reversal of 1090883909 is 9093880901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628504900 + 462379009 = 25070^2 + 21503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1090883909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090880909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545441954 + 545441955.

It is an arithmetic number, because the mean of its divisors is an integer number (545441955).

Almost surely, 2^1090883909 is an apocalyptic number.

It is an amenable number.

1090883909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090883909 is an equidigital number, since it uses as much as digits as its factorization.

1090883909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 1090883909 is about 33028.5317415110. The cubic root of 1090883909 is about 1029.4205774302.

The spelling of 1090883909 in words is "one billion, ninety million, eight hundred eighty-three thousand, nine hundred nine".