1001542885 has 32 divisors (see below), whose sum is σ = 1450893312. Its totient is φ = 649131840.

The previous prime is 1001542873. The next prime is 1001542891. The reversal of 1001542885 is 5882451001.

It is not a de Polignac number, because 1001542885 - 2⁷ = 1001542757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001542885.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 35922 + ... + 57388.

It is an arithmetic number, because the mean of its divisors is an integer number (45340416).

Almost surely, 2^1001542885 is an apocalyptic number.

It is an amenable number.

1001542885 is a deficient number, since it is larger than the sum of its proper divisors (449350427).

1001542885 is a wasteful number, since it uses less digits than its factorization.

1001542885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21553.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1001542885 is about 31647.1623530452. The cubic root of 1001542885 is about 1000.5140307271.

Adding to 1001542885 its reverse (5882451001), we get a palindrome (6883993886).

It can be divided in two parts, 10015 and 42885, that added together give a square (52900 = 230²).

The spelling of 1001542885 in words is "one billion, one million, five hundred forty-two thousand, eight hundred eighty-five".