1359605 has 12 divisors (see below), whose sum is σ = 1767780. Its totient is φ = 1003392.

The previous prime is 1359581. The next prime is 1359619. The reversal of 1359605 is 5069531.

It can be written as a sum of positive squares in 6 ways, for example, as 27889 + 1331716 = 167^2 + 1154^2 .

It is not a de Polignac number, because 1359605 - 2⁸ = 1359349 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (147315).

2^1359605 is an apocalyptic number.

It is an amenable number.

1359605 is a deficient number, since it is larger than the sum of its proper divisors (408175).

1359605 is a wasteful number, since it uses less digits than its factorization.

1359605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 1359605 is about 1166.0210118175. The cubic root of 1359605 is about 110.7824377974.

The spelling of 1359605 in words is "one million, three hundred fifty-nine thousand, six hundred five".