140609933 has 2 divisors, whose sum is σ = 140609934. Its totient is φ = 140609932.

The previous prime is 140609927. The next prime is 140609969. The reversal of 140609933 is 339906041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137992009 + 2617924 = 11747^2 + 1618^2 .

It is a cyclic number.

It is not a de Polignac number, because 140609933 - 2²⁴ = 123832717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_7944641 and since 140609933 and 7944641 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 140609893 and 140609902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140609993) 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, 70304966 + 70304967.

It is an arithmetic number, because the mean of its divisors is an integer number (70304967).

Almost surely, 2^140609933 is an apocalyptic number.

It is an amenable number.

140609933 is a deficient number, since it is larger than the sum of its proper divisors (1).

140609933 is an equidigital number, since it uses as much as digits as its factorization.

140609933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 140609933 is about 11857.9059281140. The cubic root of 140609933 is about 520.0023828786.

The spelling of 140609933 in words is "one hundred forty million, six hundred nine thousand, nine hundred thirty-three".