140104849 has 4 divisors (see below), whose sum is σ = 141045300. Its totient is φ = 139164400.

The previous prime is 140104843. The next prime is 140104859. The reversal of 140104849 is 948401041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5382400 + 134722449 = 2320^2 + 11607^2 .

It is a cyclic number.

It is not a de Polignac number, because 140104849 - 2⁷ = 140104721 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140104849.

It is not an unprimeable number, because it can be changed into a prime (140104843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470002 + ... + 470299.

It is an arithmetic number, because the mean of its divisors is an integer number (35261325).

Almost surely, 2^140104849 is an apocalyptic number.

It is an amenable number.

140104849 is a deficient number, since it is larger than the sum of its proper divisors (940451).

140104849 is an equidigital number, since it uses as much as digits as its factorization.

140104849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940450.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140104849 is about 11836.5894158748. The cubic root of 140104849 is about 519.3790035088.

The spelling of 140104849 in words is "one hundred forty million, one hundred four thousand, eight hundred forty-nine".