1489909117 has 2 divisors, whose sum is σ = 1489909118. Its totient is φ = 1489909116.

The previous prime is 1489909097. The next prime is 1489909139. The reversal of 1489909117 is 7119099841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201384921 + 288524196 = 34661^2 + 16986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489909117 - 2⁷ = 1489908989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1489901117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744954558 + 744954559.

It is an arithmetic number, because the mean of its divisors is an integer number (744954559).

Almost surely, 2^1489909117 is an apocalyptic number.

It is an amenable number.

1489909117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489909117 is an equidigital number, since it uses as much as digits as its factorization.

1489909117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 49.

The square root of 1489909117 is about 38599.3408881551. The cubic root of 1489909117 is about 1142.1415364851.

The spelling of 1489909117 in words is "one billion, four hundred eighty-nine million, nine hundred nine thousand, one hundred seventeen".