1100406289 has 2 divisors, whose sum is σ = 1100406290. Its totient is φ = 1100406288.

The previous prime is 1100406283. The next prime is 1100406361. The reversal of 1100406289 is 9826040011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921729600 + 178676689 = 30360^2 + 13367^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100406289 - 2⁹ = 1100405777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100406289.

It is not a weakly prime, because it can be changed into another prime (1100406283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550203144 + 550203145.

It is an arithmetic number, because the mean of its divisors is an integer number (550203145).

Almost surely, 2^1100406289 is an apocalyptic number.

It is an amenable number.

1100406289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100406289 is an equidigital number, since it uses as much as digits as its factorization.

1100406289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1100406289 is about 33172.3723752161. The cubic root of 1100406289 is about 1032.4071919504.

The spelling of 1100406289 in words is "one billion, one hundred million, four hundred six thousand, two hundred eighty-nine".