146666817 has 12 divisors (see below), whose sum is σ = 231111504. Its totient is φ = 88888920.

The previous prime is 146666801. The next prime is 146666831. The reversal of 146666817 is 718666641.

It is not a de Polignac number, because 146666817 - 2⁴ = 146666801 is a prime.

It is a super-2 number, since 2×146666817² = 43022310417822978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146666867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 740643 + ... + 740840.

It is an arithmetic number, because the mean of its divisors is an integer number (19259292).

Almost surely, 2^146666817 is an apocalyptic number.

It is an amenable number.

146666817 is a deficient number, since it is larger than the sum of its proper divisors (84444687).

146666817 is a wasteful number, since it uses less digits than its factorization.

146666817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481500 (or 1481497 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 146666817 is about 12110.6076230716. The cubic root of 146666817 is about 527.3641730803.

The spelling of 146666817 in words is "one hundred forty-six million, six hundred sixty-six thousand, eight hundred seventeen".