140400847 has 2 divisors, whose sum is σ = 140400848. Its totient is φ = 140400846.

The previous prime is 140400839. The next prime is 140400859. The reversal of 140400847 is 748004041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140400847 - 2³ = 140400839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140400047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70200423 + 70200424.

It is an arithmetic number, because the mean of its divisors is an integer number (70200424).

Almost surely, 2^140400847 is an apocalyptic number.

140400847 is a deficient number, since it is larger than the sum of its proper divisors (1).

140400847 is an equidigital number, since it uses as much as digits as its factorization.

140400847 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 28.

The square root of 140400847 is about 11849.0863360852. The cubic root of 140400847 is about 519.7445083656.

Adding to 140400847 its reverse (748004041), we get a palindrome (888404888).

The spelling of 140400847 in words is "one hundred forty million, four hundred thousand, eight hundred forty-seven".