140503553 has 2 divisors, whose sum is σ = 140503554. Its totient is φ = 140503552.

The previous prime is 140503547. The next prime is 140503577. The reversal of 140503553 is 355305041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139405249 + 1098304 = 11807^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 140503553 - 2¹⁶ = 140438017 is a prime.

It is not a weakly prime, because it can be changed into another prime (140503513) 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, 70251776 + 70251777.

It is an arithmetic number, because the mean of its divisors is an integer number (70251777).

Almost surely, 2^140503553 is an apocalyptic number.

It is an amenable number.

140503553 is a deficient number, since it is larger than the sum of its proper divisors (1).

140503553 is an equidigital number, since it uses as much as digits as its factorization.

140503553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 140503553 is about 11853.4194644415. The cubic root of 140503553 is about 519.8712119421.

Adding to 140503553 its reverse (355305041), we get a palindrome (495808594).

The spelling of 140503553 in words is "one hundred forty million, five hundred three thousand, five hundred fifty-three".