140523 has 8 divisors (see below), whose sum is σ = 193536. Its totient is φ = 90600.

The previous prime is 140521. The next prime is 140527. The reversal of 140523 is 325041.

140523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140523 - 2¹ = 140521 is a prime.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (140521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (24192).

2¹⁴⁰⁵²³ is an apocalyptic number.

140523 is a deficient number, since it is larger than the sum of its proper divisors (53013).

140523 is a wasteful number, since it uses less digits than its factorization.

140523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 140523 is about 374.8639753297. The cubic root of 140523 is about 51.9895195841.

Adding to 140523 its reverse (325041), we get a palindrome (465564).

The spelling of 140523 in words is "one hundred forty thousand, five hundred twenty-three".