140423 has 2 divisors, whose sum is σ = 140424. Its totient is φ = 140422.

The previous prime is 140419. The next prime is 140443. The reversal of 140423 is 324041.

140423 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140423 - 2² = 140419 is a prime.

It is equal to p₁₃₀₄₆ and since 140423 and 13046 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 140398 and 140407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70211 + 70212.

It is an arithmetic number, because the mean of its divisors is an integer number (70212).

2¹⁴⁰⁴²³ is an apocalyptic number.

140423 is a deficient number, since it is larger than the sum of its proper divisors (1).

140423 is an equidigital number, since it uses as much as digits as its factorization.

140423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140423 is about 374.7305698765. The cubic root of 140423 is about 51.9771842708.

Adding to 140423 its reverse (324041), we get a palindrome (464464).

The spelling of 140423 in words is "one hundred forty thousand, four hundred twenty-three", and thus it is an iban number.