140686707 has 8 divisors (see below), whose sum is σ = 214379776. Its totient is φ = 80392392.

The previous prime is 140686681. The next prime is 140686709. The reversal of 140686707 is 707686041.

140686707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140686707 - 2⁶ = 140686643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140686709) 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, 3349663 + ... + 3349704.

It is an arithmetic number, because the mean of its divisors is an integer number (26797472).

Almost surely, 2^140686707 is an apocalyptic number.

140686707 is a deficient number, since it is larger than the sum of its proper divisors (73693069).

140686707 is an equidigital number, since it uses as much as digits as its factorization.

140686707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6699377.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 140686707 is about 11861.1427358413. The cubic root of 140686707 is about 520.0970072964.

The spelling of 140686707 in words is "one hundred forty million, six hundred eighty-six thousand, seven hundred seven".