1306527489 has 40 divisors (see below), whose sum is σ = 2051850240. Its totient is φ = 826905024.

The previous prime is 1306527487. The next prime is 1306527491. The reversal of 1306527489 is 9847256031.

1306527489 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1306527487) and next prime (1306527491).

It is not a de Polignac number, because 1306527489 - 2¹ = 1306527487 is a prime.

1306527489 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (1306527487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 252672 + ... + 257790.

It is an arithmetic number, because the mean of its divisors is an integer number (51296256).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1306527489 = 2613054978, but 3⋅1306527489 = 3919582467 is not.

It is a vampire number, since it can be written as 28359 ⋅ 46071 (with its own digits).

Almost surely, 2^1306527489 is an apocalyptic number.

It is an amenable number.

1306527489 is a deficient number, since it is larger than the sum of its proper divisors (745322751).

1306527489 is a wasteful number, since it uses less digits than its factorization.

1306527489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291 (or 5282 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1306527489 is about 36145.9193962472. The cubic root of 1306527489 is about 1093.2165149971.

The spelling of 1306527489 in words is "one billion, three hundred six million, five hundred twenty-seven thousand, four hundred eighty-nine".