1345606 has 4 divisors (see below), whose sum is σ = 2018412. Its totient is φ = 672802.

The previous prime is 1345583. The next prime is 1345621. The reversal of 1345606 is 6065431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6065431 = 131 ⋅46301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336400 + ... + 336403.

It is an arithmetic number, because the mean of its divisors is an integer number (504603).

2^1345606 is an apocalyptic number.

1345606 is a deficient number, since it is larger than the sum of its proper divisors (672806).

1345606 is an equidigital number, since it uses as much as digits as its factorization.

1345606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672805.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1345606 is about 1160.0025862040. The cubic root of 1345606 is about 110.4009062272.

The spelling of 1345606 in words is "one million, three hundred forty-five thousand, six hundred six".