143163411542521 has 2 divisors, whose sum is σ = 143163411542522. Its totient is φ = 143163411542520.

The previous prime is 143163411542423. The next prime is 143163411542527. The reversal of 143163411542521 is 125245114361341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138740953957225 + 4422457585296 = 11778835^2 + 2102964^2 .

It is a cyclic number.

It is not a de Polignac number, because 143163411542521 - 2¹³ = 143163411534329 is a prime.

It is a super-3 number, since 3×143163411542521³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (143163411542527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71581705771260 + 71581705771261.

It is an arithmetic number, because the mean of its divisors is an integer number (71581705771261).

Almost surely, 2^{143163411542521} is an apocalyptic number.

It is an amenable number.

143163411542521 is a deficient number, since it is larger than the sum of its proper divisors (1).

143163411542521 is an equidigital number, since it uses as much as digits as its factorization.

143163411542521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 43.

The spelling of 143163411542521 in words is "one hundred forty-three trillion, one hundred sixty-three billion, four hundred eleven million, five hundred forty-two thousand, five hundred twenty-one".