140649903 has 24 divisors (see below), whose sum is σ = 208161408. Its totient is φ = 91487232.

The previous prime is 140649871. The next prime is 140649911. The reversal of 140649903 is 309946041.

140649903 is a `hidden beast` number, since 1 + 4 + 0 + 649 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 140649903 - 2⁵ = 140649871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140649953) 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 in 23 ways as a sum of consecutive naturals, for example, 62626 + ... + 64832.

It is an arithmetic number, because the mean of its divisors is an integer number (8673392).

Almost surely, 2^140649903 is an apocalyptic number.

140649903 is a deficient number, since it is larger than the sum of its proper divisors (67511505).

140649903 is a wasteful number, since it uses less digits than its factorization.

140649903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 140649903 is about 11859.5911818241. The cubic root of 140649903 is about 520.0516504415.

The spelling of 140649903 in words is "one hundred forty million, six hundred forty-nine thousand, nine hundred three".