1152438749289 has 9 divisors (see below), whose sum is σ = 1664638400893. Its totient is φ = 768290352492.

The previous prime is 1152438749269. The next prime is 1152438749327. The reversal of 1152438749289 is 9829478342511.

The square root of 1152438749289 is 1073517.

It is a perfect power (a square), and thus also a powerful number.

1152438749289 is a `hidden beast` number, since 1 + 1 + 52 + 438 + 74 + 9 + 2 + 89 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1152438749289 - 2¹⁵ = 1152438716521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152438749269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3041632 + ... + 3399470.

Almost surely, 2^{1152438749289} is an apocalyptic number.

1152438749289 is the 1073517-th square number.

1152438749289 is the 536759-th centered octagonal number.

It is an amenable number.

1152438749289 is a deficient number, since it is larger than the sum of its proper divisors (512199651604).

1152438749289 is an frugal number, since it uses more digits than its factorization.

1152438749289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715684 (or 357842 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 1152438749289 in words is "one trillion, one hundred fifty-two billion, four hundred thirty-eight million, seven hundred forty-nine thousand, two hundred eighty-nine".