143641870769 has 2 divisors, whose sum is σ = 143641870770. Its totient is φ = 143641870768.

The previous prime is 143641870739. The next prime is 143641870829. The reversal of 143641870769 is 967078146341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128585353744 + 15056517025 = 358588^2 + 122705^2 .

It is an emirp because it is prime and its reverse (967078146341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143641870769 - 2²⁴ = 143625093553 is a prime.

It is a super-2 number, since 2×143641870769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143641870709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71820935384 + 71820935385.

It is an arithmetic number, because the mean of its divisors is an integer number (71820935385).

Almost surely, 2^143641870769 is an apocalyptic number.

It is an amenable number.

143641870769 is a deficient number, since it is larger than the sum of its proper divisors (1).

143641870769 is an equidigital number, since it uses as much as digits as its factorization.

143641870769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 143641870769 in words is "one hundred forty-three billion, six hundred forty-one million, eight hundred seventy thousand, seven hundred sixty-nine".