140556727 has 4 divisors (see below), whose sum is σ = 140697040. Its totient is φ = 140416416.

The previous prime is 140556701. The next prime is 140556739. The reversal of 140556727 is 727655041.

140556727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727655041 = 67 ⋅10860523.

It is a cyclic number.

It is not a de Polignac number, because 140556727 - 2¹⁵ = 140523959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140536727) 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, 68643 + ... + 70660.

It is an arithmetic number, because the mean of its divisors is an integer number (35174260).

Almost surely, 2^140556727 is an apocalyptic number.

140556727 is a deficient number, since it is larger than the sum of its proper divisors (140313).

140556727 is a wasteful number, since it uses less digits than its factorization.

140556727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140312.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 140556727 is about 11855.6622337177. The cubic root of 140556727 is about 519.9367859547.

The spelling of 140556727 in words is "one hundred forty million, five hundred fifty-six thousand, seven hundred twenty-seven".