140128753 has 2 divisors, whose sum is σ = 140128754. Its totient is φ = 140128752.

The previous prime is 140128741. The next prime is 140128757. The reversal of 140128753 is 357821041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130599184 + 9529569 = 11428^2 + 3087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140128753 is a prime.

It is not a weakly prime, because it can be changed into another prime (140128757) 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 as a sum of consecutive naturals, namely, 70064376 + 70064377.

It is an arithmetic number, because the mean of its divisors is an integer number (70064377).

Almost surely, 2^140128753 is an apocalyptic number.

It is an amenable number.

140128753 is a deficient number, since it is larger than the sum of its proper divisors (1).

140128753 is an equidigital number, since it uses as much as digits as its factorization.

140128753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 140128753 is about 11837.5991231330. The cubic root of 140128753 is about 519.4085397924.

Adding to 140128753 its reverse (357821041), we get a palindrome (497949794).

The spelling of 140128753 in words is "one hundred forty million, one hundred twenty-eight thousand, seven hundred fifty-three".