146669933 has 2 divisors, whose sum is σ = 146669934. Its totient is φ = 146669932.

The previous prime is 146669927. The next prime is 146669977. The reversal of 146669933 is 339966641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127283524 + 19386409 = 11282^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 146669933 - 2⁶ = 146669869 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146669903) 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, 73334966 + 73334967.

It is an arithmetic number, because the mean of its divisors is an integer number (73334967).

Almost surely, 2^146669933 is an apocalyptic number.

It is an amenable number.

146669933 is a deficient number, since it is larger than the sum of its proper divisors (1).

146669933 is an equidigital number, since it uses as much as digits as its factorization.

146669933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 47.

The square root of 146669933 is about 12110.7362699383. The cubic root of 146669933 is about 527.3679077472.

The spelling of 146669933 in words is "one hundred forty-six million, six hundred sixty-nine thousand, nine hundred thirty-three".