56140159 has 4 divisors (see below), whose sum is σ = 56156904. Its totient is φ = 56123416.

The previous prime is 56140157. The next prime is 56140187. The reversal of 56140159 is 95104165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56140159 - 2¹ = 56140157 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56140159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56140151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (14039226).

Almost surely, 2^56140159 is an apocalyptic number.

56140159 is a deficient number, since it is larger than the sum of its proper divisors (16745).

56140159 is a wasteful number, since it uses less digits than its factorization.

56140159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 56140159 is about 7492.6736883438. The cubic root of 56140159 is about 382.9051545898.

The spelling of 56140159 in words is "fifty-six million, one hundred forty thousand, one hundred fifty-nine".