2002143569 has 2 divisors, whose sum is σ = 2002143570. Its totient is φ = 2002143568.

The previous prime is 2002143547. The next prime is 2002143571. The reversal of 2002143569 is 9653412002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1122250000 + 879893569 = 33500^2 + 29663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002143569 - 2⁸ = 2002143313 is a prime.

It is a super-2 number, since 2×2002143569² = 8017157741776115522, which contains 22 as substring.

Together with 2002143571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2002143589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001071784 + 1001071785.

It is an arithmetic number, because the mean of its divisors is an integer number (1001071785).

Almost surely, 2^2002143569 is an apocalyptic number.

It is an amenable number.

2002143569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002143569 is an equidigital number, since it uses as much as digits as its factorization.

2002143569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2002143569 is about 44745.3189618758. The cubic root of 2002143569 is about 1260.3710104637.

The spelling of 2002143569 in words is "two billion, two million, one hundred forty-three thousand, five hundred sixty-nine".