1532505 has 32 divisors (see below), whose sum is σ = 2741760. Its totient is φ = 725760.

The previous prime is 1532471. The next prime is 1532507. The reversal of 1532505 is 5052351.

It is not a de Polignac number, because 1532505 - 2⁸ = 1532249 is a prime.

1532505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1532507) 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 31 ways as a sum of consecutive naturals, for example, 5520 + ... + 5790.

It is an arithmetic number, because the mean of its divisors is an integer number (85680).

2^1532505 is an apocalyptic number.

1532505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1532505 is a deficient number, since it is larger than the sum of its proper divisors (1209255).

1532505 is a wasteful number, since it uses less digits than its factorization.

1532505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 1532505 is about 1237.9438597933. The cubic root of 1532505 is about 115.2923876689.

Adding to 1532505 its reverse (5052351), we get a palindrome (6584856).

The spelling of 1532505 in words is "one million, five hundred thirty-two thousand, five hundred five".