1005020144 has 40 divisors (see below), whose sum is σ = 2151424800. Its totient is φ = 452384768.

The previous prime is 1005020117. The next prime is 1005020171. The reversal of 1005020144 is 4410205001.

It is an interprime number because it is at equal distance from previous prime (1005020117) and next prime (1005020171).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74069 + ... + 86580.

It is an arithmetic number, because the mean of its divisors is an integer number (53785620).

Almost surely, 2^1005020144 is an apocalyptic number.

It is an amenable number.

1005020144 is an abundant number, since it is smaller than the sum of its proper divisors (1146404656).

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

1005020144 is a wasteful number, since it uses less digits than its factorization.

1005020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160697 (or 160691 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1005020144 is about 31702.0526780207. The cubic root of 1005020144 is about 1001.6705889119.

Adding to 1005020144 its reverse (4410205001), we get a palindrome (5415225145).

The spelling of 1005020144 in words is "one billion, five million, twenty thousand, one hundred forty-four".