1488621289 has 4 divisors (see below), whose sum is σ = 1491879124. Its totient is φ = 1485363456.

The previous prime is 1488621283. The next prime is 1488621293. The reversal of 1488621289 is 9821268841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9821268841 = 853 ⋅11513797.

It can be written as a sum of positive squares in 2 ways, for example, as 682515625 + 806105664 = 26125^2 + 28392^2 .

It is a cyclic number.

It is not a de Polignac number, because 1488621289 - 2²³ = 1480232681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1488621283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628232 + ... + 1629145.

It is an arithmetic number, because the mean of its divisors is an integer number (372969781).

Almost surely, 2^1488621289 is an apocalyptic number.

It is an amenable number.

1488621289 is a deficient number, since it is larger than the sum of its proper divisors (3257835).

1488621289 is an equidigital number, since it uses as much as digits as its factorization.

1488621289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257834.

The product of its digits is 442368, while the sum is 49.

The square root of 1488621289 is about 38582.6552870587. The cubic root of 1488621289 is about 1141.8123652107.

The spelling of 1488621289 in words is "one billion, four hundred eighty-eight million, six hundred twenty-one thousand, two hundred eighty-nine".