140648307 has 4 divisors (see below), whose sum is σ = 187531080. Its totient is φ = 93765536.

The previous prime is 140648267. The next prime is 140648311. The reversal of 140648307 is 703846041.

140648307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 140648307 - 2¹⁴ = 140631923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140640307) 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, 23441382 + ... + 23441387.

It is an arithmetic number, because the mean of its divisors is an integer number (46882770).

Almost surely, 2^140648307 is an apocalyptic number.

140648307 is a deficient number, since it is larger than the sum of its proper divisors (46882773).

140648307 is an equidigital number, since it uses as much as digits as its factorization.

140648307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46882772.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 140648307 is about 11859.5238943222. The cubic root of 140648307 is about 520.0496833692.

The spelling of 140648307 in words is "one hundred forty million, six hundred forty-eight thousand, three hundred seven".