140130665 has 8 divisors (see below), whose sum is σ = 168323400. Its totient is φ = 111993472.

The previous prime is 140130629. The next prime is 140130667. The reversal of 140130665 is 566031041.

It can be written as a sum of positive squares in 4 ways, for example, as 21058921 + 119071744 = 4589^2 + 10912^2 .

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 140130665 - 2²⁶ = 73021801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140130667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8114 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (21040425).

Almost surely, 2^140130665 is an apocalyptic number.

It is an amenable number.

140130665 is a deficient number, since it is larger than the sum of its proper divisors (28192735).

140130665 is a wasteful number, since it uses less digits than its factorization.

140130665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27771.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140130665 is about 11837.6798824770. The cubic root of 140130665 is about 519.4109021547.

The spelling of 140130665 in words is "one hundred forty million, one hundred thirty thousand, six hundred sixty-five".