140205159 has 6 divisors (see below), whose sum is σ = 202518576. Its totient is φ = 93470100.

The previous prime is 140205139. The next prime is 140205167. The reversal of 140205159 is 951502041.

140205159 is a `hidden beast` number, since 140 + 2 + 0 + 515 + 9 = 666.

It is not a de Polignac number, because 140205159 - 2⁷ = 140205031 is a prime.

It is a super-2 number, since 2×140205159² = 39314973220430562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140205139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7789167 + ... + 7789184.

It is an arithmetic number, because the mean of its divisors is an integer number (33753096).

Almost surely, 2^140205159 is an apocalyptic number.

140205159 is a deficient number, since it is larger than the sum of its proper divisors (62313417).

140205159 is a wasteful number, since it uses less digits than its factorization.

140205159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15578357 (or 15578354 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 140205159 is about 11840.8259424755. The cubic root of 140205159 is about 519.5029261270.

The spelling of 140205159 in words is "one hundred forty million, two hundred five thousand, one hundred fifty-nine".