143163240446621 has 2 divisors, whose sum is σ = 143163240446622. Its totient is φ = 143163240446620.

The previous prime is 143163240446591. The next prime is 143163240446627. The reversal of 143163240446621 is 126644042361341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134745408624121 + 8417831822500 = 11607989^2 + 2901350^2 .

It is an emirp because it is prime and its reverse (126644042361341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143163240446621 - 2⁶ = 143163240446557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143163240446627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71581620223310 + 71581620223311.

It is an arithmetic number, because the mean of its divisors is an integer number (71581620223311).

Almost surely, 2^{143163240446621} is an apocalyptic number.

It is an amenable number.

143163240446621 is a deficient number, since it is larger than the sum of its proper divisors (1).

143163240446621 is an equidigital number, since it uses as much as digits as its factorization.

143163240446621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 143163240446621 in words is "one hundred forty-three trillion, one hundred sixty-three billion, two hundred forty million, four hundred forty-six thousand, six hundred twenty-one".