143649946 has 8 divisors (see below), whose sum is σ = 235063584. Its totient is φ = 65295420.

The previous prime is 143649931. The next prime is 143649959. The reversal of 143649946 is 649946341.

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 = 143649896 and 143649905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264750 + ... + 3264793.

It is an arithmetic number, because the mean of its divisors is an integer number (29382948).

Almost surely, 2^143649946 is an apocalyptic number.

143649946 is a deficient number, since it is larger than the sum of its proper divisors (91413638).

143649946 is a wasteful number, since it uses less digits than its factorization.

143649946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529556.

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

The square root of 143649946 is about 11985.4055417412. The cubic root of 143649946 is about 523.7232115302.

It can be divided in two parts, 14364 and 9946, that added together give a triangular number (24310 = T₂₂₀).

The spelling of 143649946 in words is "one hundred forty-three million, six hundred forty-nine thousand, nine hundred forty-six".