142624045646221 has 2 divisors, whose sum is σ = 142624045646222. Its totient is φ = 142624045646220.

The previous prime is 142624045646191. The next prime is 142624045646231. The reversal of 142624045646221 is 122646540426241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131466541764996 + 11157503881225 = 11465886^2 + 3340285^2 .

It is a cyclic number.

It is not a de Polignac number, because 142624045646221 - 2²¹ = 142624043549069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142624045646231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71312022823110 + 71312022823111.

It is an arithmetic number, because the mean of its divisors is an integer number (71312022823111).

Almost surely, 2^{142624045646221} is an apocalyptic number.

It is an amenable number.

142624045646221 is a deficient number, since it is larger than the sum of its proper divisors (1).

142624045646221 is an equidigital number, since it uses as much as digits as its factorization.

142624045646221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4423680, while the sum is 49.

The spelling of 142624045646221 in words is "one hundred forty-two trillion, six hundred twenty-four billion, forty-five million, six hundred forty-six thousand, two hundred twenty-one".