1289414123 has 2 divisors, whose sum is σ = 1289414124. Its totient is φ = 1289414122.

The previous prime is 1289414107. The next prime is 1289414171. The reversal of 1289414123 is 3214149821.

It is a weak prime.

It is an emirp because it is prime and its reverse (3214149821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1289414123 - 2⁴ = 1289414107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1289414023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644707061 + 644707062.

It is an arithmetic number, because the mean of its divisors is an integer number (644707062).

Almost surely, 2^1289414123 is an apocalyptic number.

1289414123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289414123 is an equidigital number, since it uses as much as digits as its factorization.

1289414123 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1289414123 is about 35908.4129835892. The cubic root of 1289414123 is about 1088.4224079233.

The spelling of 1289414123 in words is "one billion, two hundred eighty-nine million, four hundred fourteen thousand, one hundred twenty-three".