140803649 has 8 divisors (see below), whose sum is σ = 163320768. Its totient is φ = 118887120.

The previous prime is 140803633. The next prime is 140803651. The reversal of 140803649 is 946308041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140803649 - 2⁴ = 140803633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140803679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149642 + ... + 150579.

It is an arithmetic number, because the mean of its divisors is an integer number (20415096).

Almost surely, 2^140803649 is an apocalyptic number.

It is an amenable number.

140803649 is a deficient number, since it is larger than the sum of its proper divisors (22517119).

140803649 is an equidigital number, since it uses as much as digits as its factorization.

140803649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300295.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 140803649 is about 11866.0713380630. The cubic root of 140803649 is about 520.2410728856.

The spelling of 140803649 in words is "one hundred forty million, eight hundred three thousand, six hundred forty-nine".