146668499 has 2 divisors, whose sum is σ = 146668500. Its totient is φ = 146668498.

The previous prime is 146668451. The next prime is 146668507. The reversal of 146668499 is 994866641.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146668499 - 2⁸ = 146668243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146668499.

It is not a weakly prime, because it can be changed into another prime (146668199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73334249 + 73334250.

It is an arithmetic number, because the mean of its divisors is an integer number (73334250).

Almost surely, 2^146668499 is an apocalyptic number.

146668499 is a deficient number, since it is larger than the sum of its proper divisors (1).

146668499 is an equidigital number, since it uses as much as digits as its factorization.

146668499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The square root of 146668499 is about 12110.6770661264. The cubic root of 146668499 is about 527.3661890400.

The spelling of 146668499 in words is "one hundred forty-six million, six hundred sixty-eight thousand, four hundred ninety-nine".