143946649 has 16 divisors (see below), whose sum is σ = 180233856. Its totient is φ = 111686400.

The previous prime is 143946643. The next prime is 143946659. The reversal of 143946649 is 946649341.

It is not a de Polignac number, because 143946649 - 2⁵ = 143946617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143946599 and 143946608.

It is not an unprimeable number, because it can be changed into a prime (143946643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14679 + ... + 22435.

It is an arithmetic number, because the mean of its divisors is an integer number (11264616).

Almost surely, 2^143946649 is an apocalyptic number.

It is an amenable number.

143946649 is a deficient number, since it is larger than the sum of its proper divisors (36287207).

143946649 is a wasteful number, since it uses less digits than its factorization.

143946649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016.

The product of its digits is 559872, while the sum is 46.

The square root of 143946649 is about 11997.7768357309. The cubic root of 143946649 is about 524.0835397469.

The spelling of 143946649 in words is "one hundred forty-three million, nine hundred forty-six thousand, six hundred forty-nine".