140731603 has 2 divisors, whose sum is σ = 140731604. Its totient is φ = 140731602.

The previous prime is 140731573. The next prime is 140731631. The reversal of 140731603 is 306137041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140731603 - 2⁵ = 140731571 is a prime.

It is not a weakly prime, because it can be changed into another prime (140734603) 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, 70365801 + 70365802.

It is an arithmetic number, because the mean of its divisors is an integer number (70365802).

Almost surely, 2^140731603 is an apocalyptic number.

140731603 is a deficient number, since it is larger than the sum of its proper divisors (1).

140731603 is an equidigital number, since it uses as much as digits as its factorization.

140731603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 140731603 is about 11863.0351512587. The cubic root of 140731603 is about 520.1523259363.

Adding to 140731603 its reverse (306137041), we get a palindrome (446868644).

The spelling of 140731603 in words is "one hundred forty million, seven hundred thirty-one thousand, six hundred three".