146816669 has 2 divisors, whose sum is σ = 146816670. Its totient is φ = 146816668.

The previous prime is 146816639. The next prime is 146816687. The reversal of 146816669 is 966618641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78092569 + 68724100 = 8837^2 + 8290^2 .

It is a cyclic number.

It is not a de Polignac number, because 146816669 - 2²⁰ = 145768093 is a prime.

It is a super-2 number, since 2×146816669² = 43110268592511122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146816609) 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, 73408334 + 73408335.

It is an arithmetic number, because the mean of its divisors is an integer number (73408335).

Almost surely, 2^146816669 is an apocalyptic number.

It is an amenable number.

146816669 is a deficient number, since it is larger than the sum of its proper divisors (1).

146816669 is an equidigital number, since it uses as much as digits as its factorization.

146816669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 146816669 is about 12116.7928512457. The cubic root of 146816669 is about 527.5437176169.

The spelling of 146816669 in words is "one hundred forty-six million, eight hundred sixteen thousand, six hundred sixty-nine".