140123 has 2 divisors, whose sum is σ = 140124. Its totient is φ = 140122.

The previous prime is 140111. The next prime is 140143. The reversal of 140123 is 321041.

It is a happy number.

140123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140123 - 2¹² = 136027 is a prime.

It is a plaindrome in base 7 and base 16.

It is not a weakly prime, because it can be changed into another prime (140143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70061 + 70062.

It is an arithmetic number, because the mean of its divisors is an integer number (70062).

2¹⁴⁰¹²³ is an apocalyptic number.

140123 is a deficient number, since it is larger than the sum of its proper divisors (1).

140123 is an equidigital number, since it uses as much as digits as its factorization.

140123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 140123 is about 374.3300682553. The cubic root of 140123 is about 51.9401431572.

Adding to 140123 its reverse (321041), we get a palindrome (461164).

It can be divided in two parts, 1401 and 23, that multiplied together give a palindrome (32223).

The spelling of 140123 in words is "one hundred forty thousand, one hundred twenty-three", and thus it is an iban number.