1002144144 has 40 divisors (see below), whose sum is σ = 2592780480. Its totient is φ = 333543808.

The previous prime is 1002144139. The next prime is 1002144191. The reversal of 1002144144 is 4414412001.

1002144144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1002144144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17077 + ... + 47915.

It is an arithmetic number, because the mean of its divisors is an integer number (64819512).

Almost surely, 2^1002144144 is an apocalyptic number.

It is an amenable number.

1002144144 is an abundant number, since it is smaller than the sum of its proper divisors (1590636336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002144144 is a wasteful number, since it uses less digits than its factorization.

1002144144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31527 (or 31521 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1002144144 is about 31656.6603418617. The cubic root of 1002144144 is about 1000.7142044572.

Adding to 1002144144 its reverse (4414412001), we get a palindrome (5416556145).

The spelling of 1002144144 in words is "one billion, two million, one hundred forty-four thousand, one hundred forty-four".