1534545 has 28 divisors (see below), whose sum is σ = 2767476. Its totient is φ = 816480.

The previous prime is 1534517. The next prime is 1534549. The reversal of 1534545 is 5454351.

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 1347921 = 432^2 + 1161^2 .

It is not a de Polignac number, because 1534545 - 2⁵ = 1534513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1534545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1534549) 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 27 ways as a sum of consecutive naturals, for example, 3435 + ... + 3855.

2^1534545 is an apocalyptic number.

1534545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1534545 is a deficient number, since it is larger than the sum of its proper divisors (1232931).

1534545 is an frugal number, since it uses more digits than its factorization.

1534545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 429 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 1534545 is about 1238.7675326711. The cubic root of 1534545 is about 115.3435222899.

Adding to 1534545 its reverse (5454351), we get a palindrome (6988896).

The spelling of 1534545 in words is "one million, five hundred thirty-four thousand, five hundred forty-five".