140553901 has 2 divisors, whose sum is σ = 140553902. Its totient is φ = 140553900.

The previous prime is 140553893. The next prime is 140553913. The reversal of 140553901 is 109355041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101989801 + 38564100 = 10099^2 + 6210^2 .

It is a cyclic number.

It is not a de Polignac number, because 140553901 - 2³ = 140553893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140553901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140553991) 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, 70276950 + 70276951.

It is an arithmetic number, because the mean of its divisors is an integer number (70276951).

Almost surely, 2^140553901 is an apocalyptic number.

It is an amenable number.

140553901 is a deficient number, since it is larger than the sum of its proper divisors (1).

140553901 is an equidigital number, since it uses as much as digits as its factorization.

140553901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 140553901 is about 11855.5430495612. The cubic root of 140553901 is about 519.9333013564.

It can be divided in two parts, 14055 and 3901, that added together give a square (17956 = 134²).

The spelling of 140553901 in words is "one hundred forty million, five hundred fifty-three thousand, nine hundred one".