143920634921 has 8 divisors (see below), whose sum is σ = 173137606080. Its totient is φ = 116867883888.

The previous prime is 143920634911. The next prime is 143920634933. The reversal of 143920634921 is 129436029341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143920634921 - 2⁶ = 143920634857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143920634911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541054886 + ... + 541055151.

It is an arithmetic number, because the mean of its divisors is an integer number (21642200760).

Almost surely, 2^143920634921 is an apocalyptic number.

It is an amenable number.

143920634921 is a deficient number, since it is larger than the sum of its proper divisors (29216971159).

143920634921 is a wasteful number, since it uses less digits than its factorization.

143920634921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082110063.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 143920634921 in words is "one hundred forty-three billion, nine hundred twenty million, six hundred thirty-four thousand, nine hundred twenty-one".