140666707 has 2 divisors, whose sum is σ = 140666708. Its totient is φ = 140666706.

The previous prime is 140666681. The next prime is 140666719. The reversal of 140666707 is 707666041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140666707 - 2¹¹ = 140664659 is a prime.

It is not a weakly prime, because it can be changed into another prime (140666767) 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, 70333353 + 70333354.

It is an arithmetic number, because the mean of its divisors is an integer number (70333354).

Almost surely, 2^140666707 is an apocalyptic number.

140666707 is a deficient number, since it is larger than the sum of its proper divisors (1).

140666707 is an equidigital number, since it uses as much as digits as its factorization.

140666707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 140666707 is about 11860.2996167888. The cubic root of 140666707 is about 520.0723604924.

The spelling of 140666707 in words is "one hundred forty million, six hundred sixty-six thousand, seven hundred seven".