1489909097 has 2 divisors, whose sum is σ = 1489909098. Its totient is φ = 1489909096.

The previous prime is 1489909063. The next prime is 1489909117. The reversal of 1489909097 is 7909099841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822771856 + 667137241 = 28684^2 + 25829^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489909097 - 2⁶ = 1489909033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1489909397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744954548 + 744954549.

It is an arithmetic number, because the mean of its divisors is an integer number (744954549).

Almost surely, 2^1489909097 is an apocalyptic number.

It is an amenable number.

1489909097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489909097 is an equidigital number, since it uses as much as digits as its factorization.

1489909097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 1489909097 is about 38599.3406290833. The cubic root of 1489909097 is about 1142.1415313745.

The spelling of 1489909097 in words is "one billion, four hundred eighty-nine million, nine hundred nine thousand, ninety-seven".