143521743 has 8 divisors (see below), whose sum is σ = 194057856. Its totient is φ = 94333400.

The previous prime is 143521739. The next prime is 143521753. The reversal of 143521743 is 347125341.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 143521743 - 2² = 143521739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143521743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143521753) 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, 336693 + ... + 337118.

It is an arithmetic number, because the mean of its divisors is an integer number (24257232).

Almost surely, 2^143521743 is an apocalyptic number.

143521743 is a deficient number, since it is larger than the sum of its proper divisors (50536113).

143521743 is an equidigital number, since it uses as much as digits as its factorization.

143521743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673885.

The product of its digits is 10080, while the sum is 30.

The square root of 143521743 is about 11980.0560516218. The cubic root of 143521743 is about 523.5673630644.

The spelling of 143521743 in words is "one hundred forty-three million, five hundred twenty-one thousand, seven hundred forty-three".