1149784489 has 16 divisors (see below), whose sum is σ = 1361808000. Its totient is φ = 949826304.

The previous prime is 1149784463. The next prime is 1149784543. The reversal of 1149784489 is 9844879411.

It is not a de Polignac number, because 1149784489 - 2¹¹ = 1149782441 is a prime.

It is a super-2 number, since 2×1149784489² = 2644008742289982242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1149784289) 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 15 ways as a sum of consecutive naturals, for example, 114337 + ... + 123985.

It is an arithmetic number, because the mean of its divisors is an integer number (85113000).

Almost surely, 2^1149784489 is an apocalyptic number.

It is an amenable number.

1149784489 is a deficient number, since it is larger than the sum of its proper divisors (212023511).

1149784489 is an equidigital number, since it uses as much as digits as its factorization.

1149784489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272.

The product of its digits is 2322432, while the sum is 55.

The square root of 1149784489 is about 33908.4722304028. The cubic root of 1149784489 is about 1047.6241031052.

The spelling of 1149784489 in words is "one billion, one hundred forty-nine million, seven hundred eighty-four thousand, four hundred eighty-nine".