143081473 has 8 divisors (see below), whose sum is σ = 144917640. Its totient is φ = 141250560.

The previous prime is 143081467. The next prime is 143081507. The reversal of 143081473 is 374180341.

It can be written as a sum of positive squares in 4 ways, for example, as 21464689 + 121616784 = 4633^2 + 11028^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143081473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143082473) 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 7 ways as a sum of consecutive naturals, for example, 107653 + ... + 108973.

It is an arithmetic number, because the mean of its divisors is an integer number (18114705).

It is a Proth number, since it is equal to 8733 ⋅ 2¹⁴ + 1 and 8733 < 2¹⁴.

Almost surely, 2^143081473 is an apocalyptic number.

It is an amenable number.

143081473 is a deficient number, since it is larger than the sum of its proper divisors (1836167).

143081473 is a wasteful number, since it uses less digits than its factorization.

143081473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 143081473 is about 11961.6668152896. Note that the first 3 decimals coincide. The cubic root of 143081473 is about 523.0314463286.

The spelling of 143081473 in words is "one hundred forty-three million, eighty-one thousand, four hundred seventy-three".