141981785705 has 8 divisors (see below), whose sum is σ = 176253251400. Its totient is φ = 109668689536.

The previous prime is 141981785669. The next prime is 141981785713. The reversal of 141981785705 is 507587189141.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12807675241 + 129174110464 = 113171^2 + 359408^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141981785705 - 2¹² = 141981781609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489592220 + ... + 489592509.

It is an arithmetic number, because the mean of its divisors is an integer number (22031656425).

Almost surely, 2^141981785705 is an apocalyptic number.

It is an amenable number.

141981785705 is a deficient number, since it is larger than the sum of its proper divisors (34271465695).

141981785705 is an equidigital number, since it uses as much as digits as its factorization.

141981785705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979184763.

The product of its (nonzero) digits is 2822400, while the sum is 56.

The spelling of 141981785705 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-five thousand, seven hundred five".