1018143489 has 24 divisors (see below), whose sum is σ = 1494430560. Its totient is φ = 616116160.

The previous prime is 1018143449. The next prime is 1018143493. The reversal of 1018143489 is 9843418101.

1018143489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1018143489 - 2⁹ = 1018142977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1018143419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291934 + ... + 295400.

It is an arithmetic number, because the mean of its divisors is an integer number (62267940).

Almost surely, 2^1018143489 is an apocalyptic number.

It is an amenable number.

1018143489 is a deficient number, since it is larger than the sum of its proper divisors (476287071).

1018143489 is a wasteful number, since it uses less digits than its factorization.

1018143489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4290 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1018143489 is about 31908.3608008935. The cubic root of 1018143489 is about 1006.0116177002.

The spelling of 1018143489 in words is "one billion, eighteen million, one hundred forty-three thousand, four hundred eighty-nine".