1002144161 has 8 divisors (see below), whose sum is σ = 1036646400. Its totient is φ = 967777920.

The previous prime is 1002144139. The next prime is 1002144191. The reversal of 1002144161 is 1614412001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002144161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002144191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18896 + ... + 48593.

It is an arithmetic number, because the mean of its divisors is an integer number (129580800).

Almost surely, 2^1002144161 is an apocalyptic number.

It is an amenable number.

1002144161 is a deficient number, since it is larger than the sum of its proper divisors (34502239).

1002144161 is an equidigital number, since it uses as much as digits as its factorization.

1002144161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67999.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1002144161 is about 31656.6606103676. The cubic root of 1002144161 is about 1000.7142101158.

Adding to 1002144161 its reverse (1614412001), we get a palindrome (2616556162).

The spelling of 1002144161 in words is "one billion, two million, one hundred forty-four thousand, one hundred sixty-one".