140214247 has 2 divisors, whose sum is σ = 140214248. Its totient is φ = 140214246.

The previous prime is 140214227. The next prime is 140214253. The reversal of 140214247 is 742412041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140214247 - 2¹¹ = 140212199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140214227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70107123 + 70107124.

It is an arithmetic number, because the mean of its divisors is an integer number (70107124).

Almost surely, 2^140214247 is an apocalyptic number.

140214247 is a deficient number, since it is larger than the sum of its proper divisors (1).

140214247 is an equidigital number, since it uses as much as digits as its factorization.

140214247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 140214247 is about 11841.2096932704. The cubic root of 140214247 is about 519.5141504895.

Adding to 140214247 its reverse (742412041), we get a palindrome (882626288).

The spelling of 140214247 in words is "one hundred forty million, two hundred fourteen thousand, two hundred forty-seven".