140667427 has 2 divisors, whose sum is σ = 140667428. Its totient is φ = 140667426.

The previous prime is 140667419. The next prime is 140667463. The reversal of 140667427 is 724766041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140667427 - 2³ = 140667419 is a prime.

It is not a weakly prime, because it can be changed into another prime (140667497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70333713 + 70333714.

It is an arithmetic number, because the mean of its divisors is an integer number (70333714).

Almost surely, 2^140667427 is an apocalyptic number.

140667427 is a deficient number, since it is larger than the sum of its proper divisors (1).

140667427 is an equidigital number, since it uses as much as digits as its factorization.

140667427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 140667427 is about 11860.3299701147. The cubic root of 140667427 is about 520.0732478178.

The spelling of 140667427 in words is "one hundred forty million, six hundred sixty-seven thousand, four hundred twenty-seven".