1002861145 has 16 divisors (see below), whose sum is σ = 1413824832. Its totient is φ = 673248960.

The previous prime is 1002861143. The next prime is 1002861187. The reversal of 1002861145 is 5411682001.

It is not a de Polignac number, because 1002861145 - 2¹ = 1002861143 is a prime.

It is a super-2 number, since 2×1002861145² = 2011460952301422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002861143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 700587 + ... + 702016.

It is an arithmetic number, because the mean of its divisors is an integer number (88364052).

Almost surely, 2^1002861145 is an apocalyptic number.

It is an amenable number.

1002861145 is a deficient number, since it is larger than the sum of its proper divisors (410963687).

1002861145 is a wasteful number, since it uses less digits than its factorization.

1002861145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402632.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1002861145 is about 31667.9829638706. The cubic root of 1002861145 is about 1000.9528068707.

The spelling of 1002861145 in words is "one billion, two million, eight hundred sixty-one thousand, one hundred forty-five".