140136165105 has 32 divisors (see below), whose sum is σ = 231826295808. Its totient is φ = 72210969600.

The previous prime is 140136165061. The next prime is 140136165107. The reversal of 140136165105 is 501561631041.

It is not a de Polignac number, because 140136165105 - 2¹⁰ = 140136164081 is a prime.

It is a super-2 number, since 2×140136165105² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140136165107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42685 + ... + 531125.

It is an arithmetic number, because the mean of its divisors is an integer number (7244571744).

Almost surely, 2^140136165105 is an apocalyptic number.

140136165105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140136165105 is a deficient number, since it is larger than the sum of its proper divisors (91690130703).

140136165105 is a wasteful number, since it uses less digits than its factorization.

140136165105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489097.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 140136165105 its reverse (501561631041), we get a palindrome (641697796146).

The spelling of 140136165105 in words is "one hundred forty billion, one hundred thirty-six million, one hundred sixty-five thousand, one hundred five".