146311866 has 16 divisors (see below), whose sum is σ = 325137600. Its totient is φ = 48770604.

The previous prime is 146311859. The next prime is 146311937. The reversal of 146311866 is 668113641.

146311866 is a `hidden beast` number, since 1 + 4 + 631 + 18 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 146311866.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1354686 + ... + 1354793.

It is an arithmetic number, because the mean of its divisors is an integer number (20321100).

Almost surely, 2^146311866 is an apocalyptic number.

146311866 is an abundant number, since it is smaller than the sum of its proper divisors (178825734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146311866 is a wasteful number, since it uses less digits than its factorization.

146311866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709490 (or 2709484 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 146311866 is about 12095.9441962998. The cubic root of 146311866 is about 526.9384015849.

The spelling of 146311866 in words is "one hundred forty-six million, three hundred eleven thousand, eight hundred sixty-six".