143921642089 has 16 divisors (see below), whose sum is σ = 145575738000. Its totient is φ = 142278230016.

The previous prime is 143921642071. The next prime is 143921642129. The reversal of 143921642089 is 980246129341.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 26061259225 + 117860382864 = 161435^2 + 343308^2 .

It is a cyclic number.

It is not a de Polignac number, because 143921642089 - 2¹¹ = 143921640041 is a prime.

It is a super-3 number, since 3×143921642089³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143921642489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35861847 + ... + 35865859.

It is an arithmetic number, because the mean of its divisors is an integer number (9098483625).

Almost surely, 2^143921642089 is an apocalyptic number.

It is an amenable number.

143921642089 is a deficient number, since it is larger than the sum of its proper divisors (1654095911).

143921642089 is a wasteful number, since it uses less digits than its factorization.

143921642089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 143921642089 in words is "one hundred forty-three billion, nine hundred twenty-one million, six hundred forty-two thousand, eighty-nine".