143388693128 has 36 divisors (see below), whose sum is σ = 272300844885. Its totient is φ = 70786646944.

The previous prime is 143388693121. The next prime is 143388693163. The reversal of 143388693128 is 821396883341.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 141118932964 + 2269760164 = 375658^2 + 47642^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=267758.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143388693121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 88894850 + ... + 88896462.

Almost surely, 2^143388693128 is an apocalyptic number.

It is an amenable number.

143388693128 is a deficient number, since it is larger than the sum of its proper divisors (128912151757).

143388693128 is an frugal number, since it uses more digits than its factorization.

143388693128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 1698 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 56.

The spelling of 143388693128 in words is "one hundred forty-three billion, three hundred eighty-eight million, six hundred ninety-three thousand, one hundred twenty-eight".