1351866 has 16 divisors (see below), whose sum is σ = 2718144. Its totient is φ = 448224.

The previous prime is 1351853. The next prime is 1351897. The reversal of 1351866 is 6681531.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (169884).

2^1351866 is an apocalyptic number.

1351866 is an abundant number, since it is smaller than the sum of its proper divisors (1366278).

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

1351866 is a wasteful number, since it uses less digits than its factorization.

1351866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205.

The product of its digits is 4320, while the sum is 30.

The square root of 1351866 is about 1162.6977251203. The cubic root of 1351866 is about 110.5718430176.

The spelling of 1351866 in words is "one million, three hundred fifty-one thousand, eight hundred sixty-six".