1103655089 has 2 divisors, whose sum is σ = 1103655090. Its totient is φ = 1103655088.

The previous prime is 1103655053. The next prime is 1103655131. The reversal of 1103655089 is 9805563011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1029126400 + 74528689 = 32080^2 + 8633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103655089 - 2²⁰ = 1102606513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103655389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551827544 + 551827545.

It is an arithmetic number, because the mean of its divisors is an integer number (551827545).

Almost surely, 2^1103655089 is an apocalyptic number.

It is an amenable number.

1103655089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103655089 is an equidigital number, since it uses as much as digits as its factorization.

1103655089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1103655089 is about 33221.3047455996. The cubic root of 1103655089 is about 1033.4222076756.

The spelling of 1103655089 in words is "one billion, one hundred three million, six hundred fifty-five thousand, eighty-nine".