140423318 has 12 divisors (see below), whose sum is σ = 245024532. Its totient is φ = 60181380.

The previous prime is 140423317. The next prime is 140423329. The reversal of 140423318 is 813324041.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140423317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716348 + ... + 716543.

It is an arithmetic number, because the mean of its divisors is an integer number (20418711).

Almost surely, 2^140423318 is an apocalyptic number.

140423318 is a deficient number, since it is larger than the sum of its proper divisors (104601214).

140423318 is a wasteful number, since it uses less digits than its factorization.

140423318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432907 (or 1432900 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 140423318 is about 11850.0345147177. The cubic root of 140423318 is about 519.7722350640.

Adding to 140423318 its reverse (813324041), we get a palindrome (953747359).

The spelling of 140423318 in words is "one hundred forty million, four hundred twenty-three thousand, three hundred eighteen".