1139148489 has 8 divisors (see below), whose sum is σ = 1559915200. Its totient is φ = 738907056.

The previous prime is 1139148473. The next prime is 1139148497. The reversal of 1139148489 is 9848419311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1139148489 - 2⁴ = 1139148473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139148419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5131189 + ... + 5131410.

It is an arithmetic number, because the mean of its divisors is an integer number (194989400).

Almost surely, 2^1139148489 is an apocalyptic number.

It is an amenable number.

1139148489 is a deficient number, since it is larger than the sum of its proper divisors (420766711).

1139148489 is a wasteful number, since it uses less digits than its factorization.

1139148489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262639.

The product of its digits is 248832, while the sum is 48.

The square root of 1139148489 is about 33751.2738870698. The cubic root of 1139148489 is about 1044.3837667753.

The spelling of 1139148489 in words is "one billion, one hundred thirty-nine million, one hundred forty-eight thousand, four hundred eighty-nine".