140313923 has 2 divisors, whose sum is σ = 140313924. Its totient is φ = 140313922.

The previous prime is 140313911. The next prime is 140313959. The reversal of 140313923 is 329313041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140313923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140313892 and 140313901.

It is not a weakly prime, because it can be changed into another prime (140313973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70156961 + 70156962.

It is an arithmetic number, because the mean of its divisors is an integer number (70156962).

Almost surely, 2^140313923 is an apocalyptic number.

140313923 is a deficient number, since it is larger than the sum of its proper divisors (1).

140313923 is an equidigital number, since it uses as much as digits as its factorization.

140313923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 140313923 is about 11845.4178060548. The cubic root of 140313923 is about 519.6372260158.

Adding to 140313923 its reverse (329313041), we get a palindrome (469626964).

The spelling of 140313923 in words is "one hundred forty million, three hundred thirteen thousand, nine hundred twenty-three".