1002161145 has 16 divisors (see below), whose sum is σ = 1610116992. Its totient is φ = 532266240.

The previous prime is 1002161123. The next prime is 1002161159. The reversal of 1002161145 is 5411612001.

It is not a de Polignac number, because 1002161145 - 2⁹ = 1002160633 is a prime.

It is a super-2 number, since 2×1002161145² = 2008653921095422050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134997 + ... + 142226.

It is an arithmetic number, because the mean of its divisors is an integer number (100632312).

Almost surely, 2^1002161145 is an apocalyptic number.

1002161145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002161145 is a deficient number, since it is larger than the sum of its proper divisors (607955847).

1002161145 is a wasteful number, since it uses less digits than its factorization.

1002161145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277472.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1002161145 is about 31656.9288624149. The cubic root of 1002161145 is about 1000.7198633391.

Adding to 1002161145 its reverse (5411612001), we get a palindrome (6413773146).

The spelling of 1002161145 in words is "one billion, two million, one hundred sixty-one thousand, one hundred forty-five".