143573220409 has 2 divisors, whose sum is σ = 143573220410. Its totient is φ = 143573220408.

The previous prime is 143573220397. The next prime is 143573220457. The reversal of 143573220409 is 904022375341.

143573220409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122257220409 + 21316000000 = 349653^2 + 146000^2 .

It is a cyclic number.

It is not a de Polignac number, because 143573220409 - 2⁷ = 143573220281 is a prime.

It is a super-2 number, since 2×143573220409² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143573220499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71786610204 + 71786610205.

It is an arithmetic number, because the mean of its divisors is an integer number (71786610205).

Almost surely, 2^143573220409 is an apocalyptic number.

It is an amenable number.

143573220409 is a deficient number, since it is larger than the sum of its proper divisors (1).

143573220409 is an equidigital number, since it uses as much as digits as its factorization.

143573220409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 143573220409 in words is "one hundred forty-three billion, five hundred seventy-three million, two hundred twenty thousand, four hundred nine".