140424047 has 2 divisors, whose sum is σ = 140424048. Its totient is φ = 140424046.

The previous prime is 140424043. The next prime is 140424073. The reversal of 140424047 is 740424041.

It is an a-pointer prime, because the next prime (140424073) can be obtained adding 140424047 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140424047 - 2² = 140424043 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140424043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70212023 + 70212024.

It is an arithmetic number, because the mean of its divisors is an integer number (70212024).

Almost surely, 2^140424047 is an apocalyptic number.

140424047 is a deficient number, since it is larger than the sum of its proper divisors (1).

140424047 is an equidigital number, since it uses as much as digits as its factorization.

140424047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 140424047 is about 11850.0652740818. The cubic root of 140424047 is about 519.7731345188.

Adding to 140424047 its reverse (740424041), we get a palindrome (880848088).

The spelling of 140424047 in words is "one hundred forty million, four hundred twenty-four thousand, forty-seven".