1353445 has 4 divisors (see below), whose sum is σ = 1624140. Its totient is φ = 1082752.

The previous prime is 1353433. The next prime is 1353449. The reversal of 1353445 is 5443531.

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 1046529 + 306916 = 1023^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353445 - 2¹¹ = 1351397 is a prime.

1353445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135340 + ... + 135349.

It is an arithmetic number, because the mean of its divisors is an integer number (406035).

2^1353445 is an apocalyptic number.

It is an amenable number.

1353445 is a deficient number, since it is larger than the sum of its proper divisors (270695).

1353445 is an equidigital number, since it uses as much as digits as its factorization.

1353445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270694.

The product of its digits is 3600, while the sum is 25.

The square root of 1353445 is about 1163.3765512507. The cubic root of 1353445 is about 110.6148761310.

Adding to 1353445 its reverse (5443531), we get a palindrome (6796976).

The spelling of 1353445 in words is "one million, three hundred fifty-three thousand, four hundred forty-five".