140623 has 4 divisors (see below), whose sum is σ = 160720. Its totient is φ = 120528.

The previous prime is 140617. The next prime is 140627. The reversal of 140623 is 326041.

140623 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: 326041 = 571².

It is a cyclic number.

It is not a de Polignac number, because 140623 - 2⁹ = 140111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140597 and 140606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140627) 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, 10038 + ... + 10051.

It is an arithmetic number, because the mean of its divisors is an integer number (40180).

2¹⁴⁰⁶²³ is an apocalyptic number.

140623 is a deficient number, since it is larger than the sum of its proper divisors (20097).

140623 is an equidigital number, since it uses as much as digits as its factorization.

140623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20096.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140623 is about 374.9973333239. The cubic root of 140623 is about 52.0018490467.

Adding to 140623 its reverse (326041), we get a palindrome (466664).

The spelling of 140623 in words is "one hundred forty thousand, six hundred twenty-three".