1353493 has 4 divisors (see below), whose sum is σ = 1372108. Its totient is φ = 1334880.

The previous prime is 1353487. The next prime is 1353551. The reversal of 1353493 is 3943531.

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 702244 + 651249 = 838^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353493 - 2¹³ = 1345301 is a prime.

1353493 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353433) 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, 9198 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (343027).

2^1353493 is an apocalyptic number.

It is an amenable number.

1353493 is a deficient number, since it is larger than the sum of its proper divisors (18615).

1353493 is an equidigital number, since it uses as much as digits as its factorization.

1353493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614.

The product of its digits is 4860, while the sum is 28.

The square root of 1353493 is about 1163.3971806739. The cubic root of 1353493 is about 110.6161837697.

The spelling of 1353493 in words is "one million, three hundred fifty-three thousand, four hundred ninety-three".