143744680421 has 4 divisors (see below), whose sum is σ = 143796186144. Its totient is φ = 143693174700.

The previous prime is 143744680411. The next prime is 143744680423. The reversal of 143744680421 is 124086447341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143744680421 - 2³⁴ = 126564811237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143744680423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25748675 + ... + 25754256.

It is an arithmetic number, because the mean of its divisors is an integer number (35949046536).

Almost surely, 2^143744680421 is an apocalyptic number.

It is an amenable number.

143744680421 is a deficient number, since it is larger than the sum of its proper divisors (51505723).

143744680421 is an equidigital number, since it uses as much as digits as its factorization.

143744680421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51505722.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 143744680421 in words is "one hundred forty-three billion, seven hundred forty-four million, six hundred eighty thousand, four hundred twenty-one".