1330545 has 16 divisors (see below), whose sum is σ = 2151360. Its totient is φ = 702144.

The previous prime is 1330541. The next prime is 1330547. The reversal of 1330545 is 5450331.

It is not a de Polignac number, because 1330545 - 2² = 1330541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (134460).

2^1330545 is an apocalyptic number.

1330545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1330545 is a deficient number, since it is larger than the sum of its proper divisors (820815).

1330545 is a wasteful number, since it uses less digits than its factorization.

1330545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1330545 is about 1153.4925227326. The cubic root of 1330545 is about 109.9874641362.

Adding to 1330545 its reverse (5450331), we get a palindrome (6780876).

The spelling of 1330545 in words is "one million, three hundred thirty thousand, five hundred forty-five".