1001144042 has 8 divisors (see below), whose sum is σ = 1590052356. Its totient is φ = 471126592.

The previous prime is 1001144033. The next prime is 1001144047. The reversal of 1001144042 is 2404411001.

It can be written as a sum of positive squares in 2 ways, for example, as 807071281 + 194072761 = 28409^2 + 13931^2 .

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 1001144042.

It is not an unprimeable number, because it can be changed into a prime (1001144047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14722673 + ... + 14722740.

Almost surely, 2^1001144042 is an apocalyptic number.

1001144042 is a deficient number, since it is larger than the sum of its proper divisors (588908314).

1001144042 is a wasteful number, since it uses less digits than its factorization.

1001144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29445432.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1001144042 is about 31640.8603233224. The cubic root of 1001144042 is about 1000.3812019999.

Adding to 1001144042 its reverse (2404411001), we get a palindrome (3405555043).

The spelling of 1001144042 in words is "one billion, one million, one hundred forty-four thousand, forty-two".