1353505 has 4 divisors (see below), whose sum is σ = 1624212. Its totient is φ = 1082800.

The previous prime is 1353487. The next prime is 1353551. The reversal of 1353505 is 5053531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 913936 + 439569 = 956^2 + 663^2 .

It is not a de Polignac number, because 1353505 - 2⁷ = 1353377 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135346 + ... + 135355.

It is an arithmetic number, because the mean of its divisors is an integer number (406053).

2^1353505 is an apocalyptic number.

It is an amenable number.

1353505 is a deficient number, since it is larger than the sum of its proper divisors (270707).

1353505 is an equidigital number, since it uses as much as digits as its factorization.

1353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270706.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 1353505 is about 1163.4023379726. The cubic root of 1353505 is about 110.6165106746.

The spelling of 1353505 in words is "one million, three hundred fifty-three thousand, five hundred five".