1304545 has 8 divisors (see below), whose sum is σ = 1707840. Its totient is φ = 948720.

The previous prime is 1304543. The next prime is 1304551. The reversal of 1304545 is 5454031.

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

It is not a de Polignac number, because 1304545 - 2¹ = 1304543 is a prime.

1304545 is a modest number, since divided by 4545 gives 130 as remainder.

1304545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1304543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11805 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (213480).

2^1304545 is an apocalyptic number.

It is an amenable number.

1304545 is a deficient number, since it is larger than the sum of its proper divisors (403295).

1304545 is a wasteful number, since it uses less digits than its factorization.

1304545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23735.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1304545 is about 1142.1668004280. The cubic root of 1304545 is about 109.2663296165.

Adding to 1304545 its reverse (5454031), we get a palindrome (6758576).

It can be divided in two parts, 1304 and 545, that added together give a square (1849 = 43²).

The spelling of 1304545 in words is "one million, three hundred four thousand, five hundred forty-five".