140020499 has 2 divisors, whose sum is σ = 140020500. Its totient is φ = 140020498.

The previous prime is 140020487. The next prime is 140020501. The reversal of 140020499 is 994020041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140020499 - 2¹⁶ = 139954963 is a prime.

Together with 140020501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140020429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70010249 + 70010250.

It is an arithmetic number, because the mean of its divisors is an integer number (70010250).

Almost surely, 2^140020499 is an apocalyptic number.

140020499 is a deficient number, since it is larger than the sum of its proper divisors (1).

140020499 is an equidigital number, since it uses as much as digits as its factorization.

140020499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 140020499 is about 11833.0257753459. The cubic root of 140020499 is about 519.2747520284.

The spelling of 140020499 in words is "one hundred forty million, twenty thousand, four hundred ninety-nine".