146216449 has 2 divisors, whose sum is σ = 146216450. Its totient is φ = 146216448.

The previous prime is 146216437. The next prime is 146216467. The reversal of 146216449 is 944612641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140778225 + 5438224 = 11865^2 + 2332^2 .

It is a cyclic number.

It is not a de Polignac number, because 146216449 - 2⁷ = 146216321 is a prime.

It is not a weakly prime, because it can be changed into another prime (146216149) 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, 73108224 + 73108225.

It is an arithmetic number, because the mean of its divisors is an integer number (73108225).

Almost surely, 2^146216449 is an apocalyptic number.

It is an amenable number.

146216449 is a deficient number, since it is larger than the sum of its proper divisors (1).

146216449 is an equidigital number, since it uses as much as digits as its factorization.

146216449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The square root of 146216449 is about 12091.9993797552. Note that the first 3 decimals coincide. The cubic root of 146216449 is about 526.8238293893.

The spelling of 146216449 in words is "one hundred forty-six million, two hundred sixteen thousand, four hundred forty-nine".