140223421907 has 2 divisors, whose sum is σ = 140223421908. Its totient is φ = 140223421906.

The previous prime is 140223421757. The next prime is 140223421909. The reversal of 140223421907 is 709124322041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140223421907 - 2³⁶ = 71503945171 is a prime.

Together with 140223421909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140223421909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70111710953 + 70111710954.

It is an arithmetic number, because the mean of its divisors is an integer number (70111710954).

Almost surely, 2^140223421907 is an apocalyptic number.

140223421907 is a deficient number, since it is larger than the sum of its proper divisors (1).

140223421907 is an equidigital number, since it uses as much as digits as its factorization.

140223421907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 140223421907 its reverse (709124322041), we get a palindrome (849347743948).

The spelling of 140223421907 in words is "one hundred forty billion, two hundred twenty-three million, four hundred twenty-one thousand, nine hundred seven".