1346645 has 8 divisors (see below), whose sum is σ = 1655640. Its totient is φ = 1050880.

The previous prime is 1346641. The next prime is 1346647. The reversal of 1346645 is 5466431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 1249924 = 311^2 + 1118^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1346645 - 2² = 1346641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3080 + ... + 3489.

It is an arithmetic number, because the mean of its divisors is an integer number (206955).

2^1346645 is an apocalyptic number.

It is an amenable number.

1346645 is a deficient number, since it is larger than the sum of its proper divisors (308995).

1346645 is an equidigital number, since it uses as much as digits as its factorization.

1346645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615.

The product of its digits is 8640, while the sum is 29.

The square root of 1346645 is about 1160.4503436166. The cubic root of 1346645 is about 110.4293140056.

It can be divided in two parts, 1346 and 645, that added together give a palindrome (1991).

The spelling of 1346645 in words is "one million, three hundred forty-six thousand, six hundred forty-five".