140423243173 has 2 divisors, whose sum is σ = 140423243174. Its totient is φ = 140423243172.

The previous prime is 140423243159. The next prime is 140423243227. The reversal of 140423243173 is 371342324041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97854475489 + 42568767684 = 312817^2 + 206322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140423243173 is a prime.

It is a super-2 number, since 2×140423243173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140423243773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70211621586 + 70211621587.

It is an arithmetic number, because the mean of its divisors is an integer number (70211621587).

Almost surely, 2^140423243173 is an apocalyptic number.

It is an amenable number.

140423243173 is a deficient number, since it is larger than the sum of its proper divisors (1).

140423243173 is an equidigital number, since it uses as much as digits as its factorization.

140423243173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 140423243173 in words is "one hundred forty billion, four hundred twenty-three million, two hundred forty-three thousand, one hundred seventy-three".