1530825 has 12 divisors (see below), whose sum is σ = 2531088. Its totient is φ = 816400.

The previous prime is 1530803. The next prime is 1530827. The reversal of 1530825 is 5280351.

It is not a de Polignac number, because 1530825 - 2⁸ = 1530569 is a prime.

1530825 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1530795 and 1530804.

It is not an unprimeable number, because it can be changed into a prime (1530827) 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 11 ways as a sum of consecutive naturals, for example, 10131 + ... + 10280.

It is an arithmetic number, because the mean of its divisors is an integer number (210924).

2^1530825 is an apocalyptic number.

1530825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530825 is a deficient number, since it is larger than the sum of its proper divisors (1000263).

1530825 is a wasteful number, since it uses less digits than its factorization.

1530825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20424 (or 20419 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1530825 is about 1237.2651292266. The cubic root of 1530825 is about 115.2502427206.

The spelling of 1530825 in words is "one million, five hundred thirty thousand, eight hundred twenty-five".