1353503 has 4 divisors (see below), whose sum is σ = 1424760. Its totient is φ = 1282248.

The previous prime is 1353487. The next prime is 1353551. The reversal of 1353503 is 3053531.

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

It is a cyclic number.

It is not a de Polignac number, because 1353503 - 2⁴ = 1353487 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 (1353593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35600 + ... + 35637.

It is an arithmetic number, because the mean of its divisors is an integer number (356190).

2^1353503 is an apocalyptic number.

1353503 is a deficient number, since it is larger than the sum of its proper divisors (71257).

1353503 is an equidigital number, since it uses as much as digits as its factorization.

1353503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71256.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 1353503 is about 1163.4014784244. The cubic root of 1353503 is about 110.6164561906.

The spelling of 1353503 in words is "one million, three hundred fifty-three thousand, five hundred three".