1353605 has 8 divisors (see below), whose sum is σ = 1772064. Its totient is φ = 984400.

The previous prime is 1353593. The next prime is 1353607. The reversal of 1353605 is 5063531.

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

It is not a de Polignac number, because 1353605 - 2²⁰ = 305029 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 (1353607) 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, 12251 + ... + 12360.

It is an arithmetic number, because the mean of its divisors is an integer number (221508).

2^1353605 is an apocalyptic number.

It is an amenable number.

1353605 is a deficient number, since it is larger than the sum of its proper divisors (418459).

1353605 is a wasteful number, since it uses less digits than its factorization.

1353605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24627.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1353605 is about 1163.4453145722. The cubic root of 1353605 is about 110.6192348065.

The spelling of 1353605 in words is "one million, three hundred fifty-three thousand, six hundred five".