140667347 has 2 divisors, whose sum is σ = 140667348. Its totient is φ = 140667346.

The previous prime is 140667343. The next prime is 140667361. The reversal of 140667347 is 743766041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140667347 - 2² = 140667343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140667347.

It is not a weakly prime, because it can be changed into another prime (140667343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70333673 + 70333674.

It is an arithmetic number, because the mean of its divisors is an integer number (70333674).

Almost surely, 2^140667347 is an apocalyptic number.

140667347 is a deficient number, since it is larger than the sum of its proper divisors (1).

140667347 is an equidigital number, since it uses as much as digits as its factorization.

140667347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 140667347 is about 11860.3265975267. The cubic root of 140667347 is about 520.0731492263.

The spelling of 140667347 in words is "one hundred forty million, six hundred sixty-seven thousand, three hundred forty-seven".