140004009 has 12 divisors (see below), whose sum is σ = 202983300. Its totient is φ = 92987424.

The previous prime is 140003987. The next prime is 140004017. The reversal of 140004009 is 900400041.

It can be written as a sum of positive squares in 2 ways, for example, as 35964009 + 104040000 = 5997^2 + 10200^2 .

It is not a de Polignac number, because 140004009 - 2⁷ = 140003881 is a prime.

It is a super-2 number, since 2×140004009² = 39202245072144162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140003982 and 140004000.

It is not an unprimeable number, because it can be changed into a prime (140004019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26494 + ... + 31335.

It is an arithmetic number, because the mean of its divisors is an integer number (16915275).

Almost surely, 2^140004009 is an apocalyptic number.

It is an amenable number.

140004009 is a deficient number, since it is larger than the sum of its proper divisors (62979291).

140004009 is a wasteful number, since it uses less digits than its factorization.

140004009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58104 (or 58101 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 140004009 is about 11832.3289761568. The cubic root of 140004009 is about 519.2543664971.

The spelling of 140004009 in words is "one hundred forty million, four thousand, nine".