140634141905 has 8 divisors (see below), whose sum is σ = 168883180584. Its totient is φ = 112425840000.

The previous prime is 140634141889. The next prime is 140634141929. The reversal of 140634141905 is 509141436041.

140634141905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6690585616 + 133943556289 = 81796^2 + 365983^2 .

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

It is not a de Polignac number, because 140634141905 - 2⁴ = 140634141889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10176596 + ... + 10190405.

It is an arithmetic number, because the mean of its divisors is an integer number (21110397573).

Almost surely, 2^140634141905 is an apocalyptic number.

It is an amenable number.

140634141905 is a deficient number, since it is larger than the sum of its proper divisors (28249038679).

140634141905 is a wasteful number, since it uses less digits than its factorization.

140634141905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368387.

The product of its (nonzero) digits is 51840, while the sum is 38.

Adding to 140634141905 its reverse (509141436041), we get a palindrome (649775577946).

The spelling of 140634141905 in words is "one hundred forty billion, six hundred thirty-four million, one hundred forty-one thousand, nine hundred five".