140404403 has 2 divisors, whose sum is σ = 140404404. Its totient is φ = 140404402.

The previous prime is 140404393. The next prime is 140404423. The reversal of 140404403 is 304404041.

It is an a-pointer prime, because the next prime (140404423) can be obtained adding 140404403 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (304404041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140404403 - 2⁴ = 140404387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140404423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70202201 + 70202202.

It is an arithmetic number, because the mean of its divisors is an integer number (70202202).

Almost surely, 2^140404403 is an apocalyptic number.

140404403 is a deficient number, since it is larger than the sum of its proper divisors (1).

140404403 is an equidigital number, since it uses as much as digits as its factorization.

140404403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140404403 is about 11849.2363888987. The cubic root of 140404403 is about 519.7488962685.

Adding to 140404403 its reverse (304404041), we get a palindrome (444808444).

The spelling of 140404403 in words is "one hundred forty million, four hundred four thousand, four hundred three".