140667361 has 2 divisors, whose sum is σ = 140667362. Its totient is φ = 140667360.

The previous prime is 140667347. The next prime is 140667389. The reversal of 140667361 is 163766041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92448225 + 48219136 = 9615^2 + 6944^2 .

It is a cyclic number.

It is not a de Polignac number, because 140667361 - 2²³ = 132278753 is a prime.

It is not a weakly prime, because it can be changed into another prime (140664361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70333680 + 70333681.

It is an arithmetic number, because the mean of its divisors is an integer number (70333681).

Almost surely, 2^140667361 is an apocalyptic number.

It is an amenable number.

140667361 is a deficient number, since it is larger than the sum of its proper divisors (1).

140667361 is an equidigital number, since it uses as much as digits as its factorization.

140667361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 140667361 is about 11860.3271877297. The cubic root of 140667361 is about 520.0731664798.

The spelling of 140667361 in words is "one hundred forty million, six hundred sixty-seven thousand, three hundred sixty-one".