140534084855221 has 2 divisors, whose sum is σ = 140534084855222. Its totient is φ = 140534084855220.

The previous prime is 140534084855123. The next prime is 140534084855243. The reversal of 140534084855221 is 122558480435041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104683796880100 + 35850287975121 = 10231510^2 + 5987511^2 .

It is a cyclic number.

It is not a de Polignac number, because 140534084855221 - 2²⁹ = 140533547984309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140534084855921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70267042427610 + 70267042427611.

It is an arithmetic number, because the mean of its divisors is an integer number (70267042427611).

Almost surely, 2^{140534084855221} is an apocalyptic number.

It is an amenable number.

140534084855221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140534084855221 is an equidigital number, since it uses as much as digits as its factorization.

140534084855221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144000, while the sum is 52.

The spelling of 140534084855221 in words is "one hundred forty trillion, five hundred thirty-four billion, eighty-four million, eight hundred fifty-five thousand, two hundred twenty-one".