140307499 has 2 divisors, whose sum is σ = 140307500. Its totient is φ = 140307498.

The previous prime is 140307491. The next prime is 140307523. The reversal of 140307499 is 994703041.

140307499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (994703041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140307499 - 2³ = 140307491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140307491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70153749 + 70153750.

It is an arithmetic number, because the mean of its divisors is an integer number (70153750).

Almost surely, 2^140307499 is an apocalyptic number.

140307499 is a deficient number, since it is larger than the sum of its proper divisors (1).

140307499 is an equidigital number, since it uses as much as digits as its factorization.

140307499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 140307499 is about 11845.1466432459. The cubic root of 140307499 is about 519.6292957016.

The spelling of 140307499 in words is "one hundred forty million, three hundred seven thousand, four hundred ninety-nine".