143520028481 has 16 divisors (see below), whose sum is σ = 146473958400. Its totient is φ = 140599800000.

The previous prime is 143520028409. The next prime is 143520028499. The reversal of 143520028481 is 184820025341.

143520028481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 143520028481 - 2³⁰ = 142446286657 is a prime.

It is a super-4 number, since 4×143520028481⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143520028381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8259080 + ... + 8276438.

It is an arithmetic number, because the mean of its divisors is an integer number (9154622400).

Almost surely, 2^143520028481 is an apocalyptic number.

It is an amenable number.

143520028481 is a deficient number, since it is larger than the sum of its proper divisors (2953929919).

143520028481 is a wasteful number, since it uses less digits than its factorization.

143520028481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18320.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 143520028481 in words is "one hundred forty-three billion, five hundred twenty million, twenty-eight thousand, four hundred eighty-one".