143947246 has 8 divisors (see below), whose sum is σ = 218962224. Its totient is φ = 70959840.

The previous prime is 143947241. The next prime is 143947259. The reversal of 143947246 is 642749341.

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

It is a junction number, because it is equal to n+sod(n) for n = 143947199 and 143947208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143947241) 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, 506715 + ... + 506998.

It is an arithmetic number, because the mean of its divisors is an integer number (27370278).

Almost surely, 2^143947246 is an apocalyptic number.

143947246 is a deficient number, since it is larger than the sum of its proper divisors (75014978).

143947246 is a wasteful number, since it uses less digits than its factorization.

143947246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013786.

The product of its digits is 145152, while the sum is 40.

The square root of 143947246 is about 11997.8017153144. The cubic root of 143947246 is about 524.0842642686.

The spelling of 143947246 in words is "one hundred forty-three million, nine hundred forty-seven thousand, two hundred forty-six".