1148143839 has 8 divisors (see below), whose sum is σ = 1532115072. Its totient is φ = 764800920.

The previous prime is 1148143819. The next prime is 1148143847. The reversal of 1148143839 is 9383418411.

It is a happy number.

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

It is not a de Polignac number, because 1148143839 - 2⁸ = 1148143583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1148143839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148143819) 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 7 ways as a sum of consecutive naturals, for example, 152797 + ... + 160134.

It is an arithmetic number, because the mean of its divisors is an integer number (191514384).

Almost surely, 2^1148143839 is an apocalyptic number.

1148143839 is a deficient number, since it is larger than the sum of its proper divisors (383971233).

1148143839 is a wasteful number, since it uses less digits than its factorization.

1148143839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314157.

The product of its digits is 82944, while the sum is 42.

The square root of 1148143839 is about 33884.2712626375. The cubic root of 1148143839 is about 1047.1255741281.

The spelling of 1148143839 in words is "one billion, one hundred forty-eight million, one hundred forty-three thousand, eight hundred thirty-nine".