100532505 has 16 divisors (see below), whose sum is σ = 162792000. Its totient is φ = 52970688.

The previous prime is 100532503. The next prime is 100532557. The reversal of 100532505 is 505235001.

It is not a de Polignac number, because 100532505 - 2¹ = 100532503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100532501) 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 15 ways as a sum of consecutive naturals, for example, 39130 + ... + 41619.

It is an arithmetic number, because the mean of its divisors is an integer number (10174500).

Almost surely, 2^100532505 is an apocalyptic number.

100532505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100532505 is a deficient number, since it is larger than the sum of its proper divisors (62259495).

100532505 is an equidigital number, since it uses as much as digits as its factorization.

100532505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80840.

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

The square root of 100532505 is about 10026.5898988639. The cubic root of 100532505 is about 464.9813150082.

Adding to 100532505 its reverse (505235001), we get a palindrome (605767506).

The spelling of 100532505 in words is "one hundred million, five hundred thirty-two thousand, five hundred five".