143680001 has 4 divisors (see below), whose sum is σ = 143724372. Its totient is φ = 143635632.

The previous prime is 143679997. The next prime is 143680003. The reversal of 143680001 is 100086341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141039376 + 2640625 = 11876^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 143680001 - 2² = 143679997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143680003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16910 + ... + 23943.

It is an arithmetic number, because the mean of its divisors is an integer number (35931093).

Almost surely, 2^143680001 is an apocalyptic number.

It is an amenable number.

143680001 is a deficient number, since it is larger than the sum of its proper divisors (44371).

143680001 is an equidigital number, since it uses as much as digits as its factorization.

143680001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44370.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 143680001 is about 11986.6592927304. The cubic root of 143680001 is about 523.7597341185.

The spelling of 143680001 in words is "one hundred forty-three million, six hundred eighty thousand, one".