143211726946 has 4 divisors (see below), whose sum is σ = 214817590422. Its totient is φ = 71605863472.

The previous prime is 143211726907. The next prime is 143211726979. The reversal of 143211726946 is 649627112341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649627112341 = 163 ⋅3985442407.

It can be written as a sum of positive squares in only one way, i.e., 101817789921 + 41393937025 = 319089^2 + 203455^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143211726896 and 143211726905.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35802931735 + ... + 35802931738.

Almost surely, 2^143211726946 is an apocalyptic number.

143211726946 is a deficient number, since it is larger than the sum of its proper divisors (71605863476).

143211726946 is an equidigital number, since it uses as much as digits as its factorization.

143211726946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71605863475.

The product of its digits is 435456, while the sum is 46.

The spelling of 143211726946 in words is "one hundred forty-three billion, two hundred eleven million, seven hundred twenty-six thousand, nine hundred forty-six".