1346661 has 6 divisors (see below), whose sum is σ = 1945190. Its totient is φ = 897768.

The previous prime is 1346647. The next prime is 1346669. The reversal of 1346661 is 1666431.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 656100 = 831^2 + 810^2 .

It is not a de Polignac number, because 1346661 - 2⁵ = 1346629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74806 + ... + 74823.

2^1346661 is an apocalyptic number.

It is an amenable number.

1346661 is a deficient number, since it is larger than the sum of its proper divisors (598529).

1346661 is a wasteful number, since it uses less digits than its factorization.

1346661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149635 (or 149632 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1346661 is about 1160.4572374715. The cubic root of 1346661 is about 110.4297513547.

The spelling of 1346661 in words is "one million, three hundred forty-six thousand, six hundred sixty-one".