1461866 has 16 divisors (see below), whose sum is σ = 2558400. Its totient is φ = 626220.

The previous prime is 1461853. The next prime is 1461877. The reversal of 1461866 is 6681641.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 380 + ... + 1751.

It is an arithmetic number, because the mean of its divisors is an integer number (159900).

2^1461866 is an apocalyptic number.

1461866 is a deficient number, since it is larger than the sum of its proper divisors (1096534).

1461866 is an equidigital number, since it uses as much as digits as its factorization.

1461866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154 (or 2140 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1461866 is about 1209.0765070913. The cubic root of 1461866 is about 113.4930293868.

The spelling of 1461866 in words is "one million, four hundred sixty-one thousand, eight hundred sixty-six".