143361540353621 has 2 divisors, whose sum is σ = 143361540353622. Its totient is φ = 143361540353620.

The previous prime is 143361540353407. The next prime is 143361540353627. The reversal of 143361540353621 is 126353045163341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99336324831121 + 44025215522500 = 9966761^2 + 6635150^2 .

It is a cyclic number.

It is not a de Polignac number, because 143361540353621 - 2¹⁴ = 143361540337237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143361540353627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71680770176810 + 71680770176811.

It is an arithmetic number, because the mean of its divisors is an integer number (71680770176811).

Almost surely, 2^{143361540353621} is an apocalyptic number.

It is an amenable number.

143361540353621 is a deficient number, since it is larger than the sum of its proper divisors (1).

143361540353621 is an equidigital number, since it uses as much as digits as its factorization.

143361540353621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 143361540353621 in words is "one hundred forty-three trillion, three hundred sixty-one billion, five hundred forty million, three hundred fifty-three thousand, six hundred twenty-one".