140966939 has 2 divisors, whose sum is σ = 140966940. Its totient is φ = 140966938.

The previous prime is 140966927. The next prime is 140966953. The reversal of 140966939 is 939669041.

It is a weak prime.

It is an emirp because it is prime and its reverse (939669041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140966939 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 140966893 and 140966902.

It is not a weakly prime, because it can be changed into another prime (140966039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70483469 + 70483470.

It is an arithmetic number, because the mean of its divisors is an integer number (70483470).

Almost surely, 2^140966939 is an apocalyptic number.

140966939 is a deficient number, since it is larger than the sum of its proper divisors (1).

140966939 is an equidigital number, since it uses as much as digits as its factorization.

140966939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 140966939 is about 11872.9498861909. The cubic root of 140966939 is about 520.4421030616.

The spelling of 140966939 in words is "one hundred forty million, nine hundred sixty-six thousand, nine hundred thirty-nine".