140236907 has 2 divisors, whose sum is σ = 140236908. Its totient is φ = 140236906.

The previous prime is 140236897. The next prime is 140236937. The reversal of 140236907 is 709632041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140236907 - 2⁶ = 140236843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140236937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70118453 + 70118454.

It is an arithmetic number, because the mean of its divisors is an integer number (70118454).

Almost surely, 2^140236907 is an apocalyptic number.

140236907 is a deficient number, since it is larger than the sum of its proper divisors (1).

140236907 is an equidigital number, since it uses as much as digits as its factorization.

140236907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 140236907 is about 11842.1664825318. The cubic root of 140236907 is about 519.5421351791.

Adding to 140236907 its reverse (709632041), we get a palindrome (849868948).

The spelling of 140236907 in words is "one hundred forty million, two hundred thirty-six thousand, nine hundred seven".