143473481 has 2 divisors, whose sum is σ = 143473482. Its totient is φ = 143473480.

The previous prime is 143473439. The next prime is 143473483. The reversal of 143473481 is 184374341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85470025 + 58003456 = 9245^2 + 7616^2 .

It is a cyclic number.

It is not a de Polignac number, because 143473481 - 2¹⁰ = 143472457 is a prime.

It is a super-2 number, since 2×143473481² = 41169279500514722, which contains 22 as substring.

Together with 143473483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143473483) 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 as a sum of consecutive naturals, namely, 71736740 + 71736741.

It is an arithmetic number, because the mean of its divisors is an integer number (71736741).

Almost surely, 2^143473481 is an apocalyptic number.

It is an amenable number.

143473481 is a deficient number, since it is larger than the sum of its proper divisors (1).

143473481 is an equidigital number, since it uses as much as digits as its factorization.

143473481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 143473481 is about 11978.0416178940. The cubic root of 143473481 is about 523.5086698880.

The spelling of 143473481 in words is "one hundred forty-three million, four hundred seventy-three thousand, four hundred eighty-one".